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-rw-r--r--2024/captions/emacsconf-2024-shell--emacs-as-a-shell--christopher-howard--main--chapters.vtt44
-rw-r--r--2024/captions/emacsconf-2024-shell--emacs-as-a-shell--christopher-howard--main.vtt1142
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diff --git a/2024/captions/emacsconf-2024-shell--emacs-as-a-shell--christopher-howard--main--chapters.vtt b/2024/captions/emacsconf-2024-shell--emacs-as-a-shell--christopher-howard--main--chapters.vtt
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@@ -0,0 +1,44 @@
+WEBVTT
+
+
+00:00:02.940 --> 00:00:37.880
+Introduction
+
+00:00:37.881 --> 00:01:38.559
+What do I mean by shell?
+
+00:01:38.560 --> 00:04:50.159
+What I do not mean
+
+00:04:50.160 --> 00:09:26.911
+What is a shell?
+
+00:09:26.912 --> 00:11:57.299
+Launching external processes
+
+00:11:57.300 --> 00:14:33.413
+Environment variables
+
+00:14:54.400 --> 00:16:02.546
+Processes
+
+00:17:00.180 --> 00:20:07.719
+Redirecting and pipelining input and output
+
+00:20:09.440 --> 00:21:01.999
+Scripts
+
+00:21:11.780 --> 00:23:30.079
+File system management
+
+00:23:43.560 --> 00:24:23.639
+Networking
+
+00:24:30.120 --> 00:34:21.127
+A brief tour of Eshell
+
+00:34:21.128 --> 00:36:36.979
+Login shell
+
+00:36:36.980 --> 00:37:13.000
+Resources
diff --git a/2024/captions/emacsconf-2024-shell--emacs-as-a-shell--christopher-howard--main.vtt b/2024/captions/emacsconf-2024-shell--emacs-as-a-shell--christopher-howard--main.vtt
new file mode 100644
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--- /dev/null
+++ b/2024/captions/emacsconf-2024-shell--emacs-as-a-shell--christopher-howard--main.vtt
@@ -0,0 +1,1142 @@
+WEBVTT captioned by mark
+
+NOTE Introduction
+
+00:00:02.940 --> 00:00:08.719
+Welcome to Emacs as a Shell, a talk by Christopher Howard for
+
+00:00:08.720 --> 00:00:13.799
+Emacs Conference 2024.
+
+00:00:13.800 --> 00:00:18.399
+In this talk, I would like to explore, or advocate for, a
+
+00:00:18.400 --> 00:00:21.919
+particular perspective. I want to encourage people to
+
+00:00:21.920 --> 00:00:26.479
+think of Emacs not as simply an editor or a development
+
+00:00:26.480 --> 00:00:31.119
+environment, but rather as a shell, or at least something
+
+00:00:31.120 --> 00:00:33.919
+that allows us to do most of the things that we might
+
+00:00:33.920 --> 00:00:37.880
+otherwise want to do from a shell.
+
+NOTE What do I mean by shell?
+
+00:00:37.881 --> 00:00:40.839
+What do I mean by shell? By
+
+00:00:40.840 --> 00:00:45.439
+shell, I mean basically an interface that allows us to
+
+00:00:45.440 --> 00:00:50.679
+interact with the rest of our system by entering commands.
+
+00:00:50.680 --> 00:00:55.039
+That definition is, perhaps, a little too broad, and so I
+
+00:00:55.040 --> 00:00:58.439
+will try to narrow it down with a list of features that,
+
+00:00:58.440 --> 00:01:03.279
+historically, we have come to expect from a shell. The Bash
+
+00:01:03.280 --> 00:01:07.719
+shell is one very portable and well-known shell, and for
+
+00:01:07.720 --> 00:01:13.599
+many of us it is maybe the prototypical example. But in the
+
+00:01:13.600 --> 00:01:16.879
+past there have been many other shells, and there are other
+
+00:01:16.880 --> 00:01:21.119
+shells available today. If we are willing to be flexible in
+
+00:01:21.120 --> 00:01:25.559
+our thinking, we can think of Emacs as being a shell, or at
+
+00:01:25.560 --> 00:01:28.879
+least providing most of the functionality that we expect
+
+00:01:28.880 --> 00:01:38.559
+from a shell.
+
+NOTE What I do not mean
+
+00:01:38.560 --> 00:01:42.759
+Before further expanding on this idea, I must emphasize
+
+00:01:42.760 --> 00:01:47.159
+what I do not mean. First of all, I am not talking about
+
+00:01:47.160 --> 00:01:51.439
+running Bash, or some other external shell, from within
+
+00:01:51.440 --> 00:01:56.439
+Emacs, although this is certainly possible. I am arguing,
+
+00:01:56.440 --> 00:02:02.439
+rather, for using Emacs as a shell, instead of other shells.
+
+00:02:02.440 --> 00:02:06.239
+Second, I do not mean running a terminal emulator from
+
+00:02:06.240 --> 00:02:11.399
+within Emacs. Emacs has a built-in terminal emulator, but
+
+00:02:11.400 --> 00:02:15.839
+this is not what I mean. A terminal emulator is essentially a
+
+00:02:15.840 --> 00:02:20.039
+program designed to control the cursor and text appearance
+
+00:02:20.040 --> 00:02:23.999
+in response to various control codes in order to mimic a
+
+00:02:24.000 --> 00:02:28.439
+terminal display device. There are certainly legitimate
+
+00:02:28.440 --> 00:02:32.559
+reasons to do this. Nevertheless, in general, it does not
+
+00:02:32.560 --> 00:02:36.519
+make much sense to run a terminal emulator within Emacs,
+
+00:02:36.520 --> 00:02:39.719
+because Emacs has its own commands for controlling the
+
+00:02:39.720 --> 00:02:45.039
+cursor and text appearance. Also, due to the way Emacs was
+
+00:02:45.040 --> 00:02:48.919
+designed historically, Emacs itself believes that it is
+
+00:02:48.920 --> 00:02:53.119
+running on a terminal. So you end up with layers upon layers
+
+00:02:53.120 --> 00:02:58.199
+of terminal emulation. Anyhow, at the end of the day, Emacs
+
+00:02:58.200 --> 00:03:01.839
+will not perform as well as a dedicated terminal emulator
+
+00:03:01.840 --> 00:03:08.079
+program. I also think that, as we try to force ANSI terminal
+
+00:03:08.080 --> 00:03:12.359
+emulation into our Emacs workflow, this ultimately will be
+
+00:03:12.360 --> 00:03:15.879
+a hindrance to us in taking advantage of the natural and
+
+00:03:15.880 --> 00:03:19.319
+pleasant interfaces that are already available to us
+
+00:03:19.320 --> 00:03:24.999
+within Emacs. In brief, if your goal is simply to figure out
+
+00:03:25.000 --> 00:03:28.499
+how to be able to do all your normal Bash command line
+
+00:03:28.500 --> 00:03:32.359
+wizardry from within an Emacs window instead of a GNOME
+
+00:03:32.360 --> 00:03:36.479
+console window, you are headed down a different set of train
+
+00:03:36.480 --> 00:03:43.199
+tracks than I am. Also, something which I fear may confuse
+
+00:03:43.200 --> 00:03:47.919
+the issue for some viewers is the fact that Emacs ships with
+
+00:03:47.920 --> 00:03:52.839
+its own unique built-in shell, called the Emacs shell, or
+
+00:03:52.840 --> 00:03:59.079
+Eshell.
+
+00:03:59.080 --> 00:04:02.959
+Eshell aims to be a legitimate shell, and provides a very
+
+00:04:02.960 --> 00:04:07.599
+similar experience to other shells like Bash, while being
+
+00:04:07.600 --> 00:04:11.119
+well integrated into the Emacs interface, and without
+
+00:04:11.120 --> 00:04:15.639
+giving up the power of the Emacs Lisp engine. Eshell will be
+
+00:04:15.640 --> 00:04:19.139
+mentioned multiple times in this talk. The entire talk
+
+00:04:19.140 --> 00:04:24.179
+could, in fact, be about Eshell, except that I want the talk
+
+00:04:24.180 --> 00:04:28.319
+to cover all aspects of Emacs shell-like functionality
+
+00:04:28.320 --> 00:04:32.079
+through its other tools, such as interactive commands and
+
+00:04:32.080 --> 00:04:37.079
+special modes. So, hopefully we can keep distinct in our
+
+00:04:37.080 --> 00:04:43.279
+mind the ideas of Emacs as a shell versus the Emacs shell,
+
+00:04:43.880 --> 00:04:50.159
+though the latter is an important part of the former.
+
+NOTE What is a shell?
+
+00:04:50.160 --> 00:04:55.399
+Let's get back to the fundamental idea of what is a shell. In
+
+00:04:55.400 --> 00:04:59.159
+the broadest definition, a shell is an interface which
+
+00:04:59.160 --> 00:05:02.279
+allows you to interact with your operating system through
+
+00:05:02.280 --> 00:05:06.840
+commands. However, from a historical perspective, there
+
+00:05:06.841 --> 00:05:10.699
+are a few basic capabilities which we expect to be part of
+
+00:05:10.700 --> 00:05:17.880
+every shell.
+
+00:05:17.881 --> 00:05:21.420
+First of all, the shell provides a means of launching
+
+00:05:21.421 --> 00:05:26.440
+external programs. Some internal or built-in commands
+
+00:05:26.441 --> 00:05:31.679
+might also be made available. Second, the shell provides a
+
+00:05:31.680 --> 00:05:36.820
+means of managing environment variables. In the past,
+
+00:05:36.821 --> 00:05:40.580
+environment variables often played a critical role as a
+
+00:05:40.581 --> 00:05:45.360
+means of passing in options, file names, device names, and
+
+00:05:45.361 --> 00:05:50.119
+suchlike to external programs. This is not quite as common
+
+00:05:50.120 --> 00:05:54.080
+today, but the environment still plays a critical role in
+
+00:05:54.081 --> 00:05:57.619
+managing things such as the path to executables and
+
+00:05:57.620 --> 00:06:03.080
+libraries, as well as various other user, desktop, and
+
+00:06:03.081 --> 00:06:08.280
+system settings. The shell modifies the environment and
+
+00:06:08.281 --> 00:06:11.620
+passes it on to external programs.
+
+00:06:13.540 --> 00:06:17.580
+Historically, job control was expected to be either a
+
+00:06:17.581 --> 00:06:21.560
+function of the shell, or easily accessible from it.
+
+00:06:21.561 --> 00:06:24.019
+Usually today, our personal computing is not
+
+00:06:24.020 --> 00:06:29.280
+batch-oriented. But typically, shells can run multiple
+
+00:06:29.281 --> 00:06:34.599
+processes simultaneously, as well as provide means to
+
+00:06:34.600 --> 00:06:38.780
+suspend and terminate processes, which are useful
+
+00:06:38.781 --> 00:06:44.880
+features. Shells should be able to redirect and pipeline
+
+00:06:44.881 --> 00:06:49.100
+process input and output. This allows the user to connect
+
+00:06:49.101 --> 00:06:53.880
+process input and output with files, devices, or other
+
+00:06:53.881 --> 00:06:58.813
+processes. Finally, shells are expected to have some
+
+00:06:58.814 --> 00:07:02.380
+limited scripting capability, such as the
+
+00:07:02.381 --> 00:07:06.613
+POSIX-compliant set of program statements and
+
+00:07:06.614 --> 00:07:08.880
+conditionals that Bash provides.
+
+00:07:11.100 --> 00:07:15.113
+As command-line wizards, there are a number of tasks we
+
+00:07:15.114 --> 00:07:18.280
+expect to be able to do quickly and easily from our shell,
+
+00:07:18.660 --> 00:07:21.646
+even though these tasks are not the domain of the shell
+
+00:07:21.647 --> 00:07:27.880
+itself. A common task is file management and navigation. We
+
+00:07:27.881 --> 00:07:31.113
+quickly navigate and manipulate the file system with
+
+00:07:31.114 --> 00:07:34.813
+standard utilities that do things like change the current
+
+00:07:34.814 --> 00:07:39.380
+working directory, rename files, move files, and delete
+
+00:07:39.381 --> 00:07:44.146
+files. We usually expect to have access to some additional
+
+00:07:44.147 --> 00:07:48.380
+process management utilities. These allow us to do things
+
+00:07:48.381 --> 00:07:51.780
+such as find out the status of all processes running on the
+
+00:07:51.781 --> 00:07:57.980
+system, and send signals to processes. Finally, we expect
+
+00:07:57.981 --> 00:08:02.113
+to have access to some basic networking utilities. For
+
+00:08:02.114 --> 00:08:05.413
+example, we should be able to run commands that set up
+
+00:08:05.414 --> 00:08:09.513
+network interfaces, ping computers, and download files.
+
+00:08:09.514 --> 00:08:16.080
+With a little reflection, we can see that Emacs can provide
+
+00:08:16.081 --> 00:08:20.146
+all or nearly all of the functionality we have described so
+
+00:08:20.147 --> 00:08:24.046
+far. And the functionality can be called conveniently
+
+00:08:24.047 --> 00:08:26.746
+through one of several methods.
+
+00:08:33.520 --> 00:08:43.846
+Either a normal interactive call, like M-x something, or a
+
+00:08:43.847 --> 00:08:46.013
+call to an elisp function,
+
+00:08:53.620 --> 00:09:01.180
+or through Eshell commands, or through some special buffer
+
+00:09:01.181 --> 00:09:06.946
+mode, such as the directory editor, which provides its own
+
+00:09:06.947 --> 00:09:09.413
+interface to some functionality.
+
+00:09:09.414 --> 00:09:17.413
+It may be going too far to say that Emacs is a full replacement
+
+00:09:17.414 --> 00:09:21.713
+for shells like Bash. Nevertheless, we can see that Emacs
+
+00:09:21.714 --> 00:09:25.680
+can do most of the things that we might otherwise do with our
+
+00:09:25.681 --> 00:09:26.911
+shell.
+
+NOTE Launching external processes
+
+00:09:26.912 --> 00:09:32.513
+Let us give some examples. First, can Emacs launch
+
+00:09:32.514 --> 00:09:36.680
+external commands? Of course. Now, there are something
+
+00:09:36.681 --> 00:09:40.446
+like a half-dozen different ways to do that within Emacs, and
+
+00:09:40.447 --> 00:09:46.713
+some are more convenient than others. From any Elisp
+
+00:09:46.714 --> 00:09:50.780
+program, we can call functions like make-process and
+
+00:09:50.781 --> 00:09:53.913
+call-process to launch external processes.
+
+00:10:12.460 --> 00:10:16.846
+These, however, generally are not convenient for quick,
+
+00:10:16.847 --> 00:10:22.380
+one-off commands. Another option would be to run Eshell,
+
+00:10:22.381 --> 00:10:26.580
+which would allow us to call the external program from a
+
+00:10:26.581 --> 00:10:28.946
+familiar command line prompt.
+
+00:10:34.160 --> 00:10:38.880
+If we do not actually want to drop into Eshell just to run one
+
+00:10:38.881 --> 00:10:42.213
+command, we also have the interactive command,
+
+00:10:42.214 --> 00:10:44.613
+eshell-command,
+
+00:10:52.420 --> 00:10:56.746
+which would allow us to call the external program from a
+
+00:10:56.747 --> 00:10:59.180
+familiar command line prompt.
+
+00:11:09.940 --> 00:11:12.080
+If we do not actually want to drop an
+
+00:11:12.081 --> 00:11:15.699
+Eshell just to run one command, as I just mentioned, we also
+
+00:11:15.700 --> 00:11:19.799
+have the interactive command eshell-command, which allows
+
+00:11:19.800 --> 00:11:23.399
+us to enter in a one-off command and run that immediately.
+
+00:11:25.420 --> 00:11:28.799
+And finally, there is also an interactive command called
+
+00:11:28.800 --> 00:11:30.499
+simply shell-command.
+
+00:11:34.600 --> 00:11:39.099
+Shell command is like Eshell command, but instead passes
+
+00:11:39.100 --> 00:11:42.899
+the command off to our system shell, for example, bash.
+
+00:11:43.940 --> 00:11:48.599
+This is cheating, of course, but it might be useful or convenient
+
+00:11:48.600 --> 00:11:57.299
+in some scenarios.
+
+NOTE Environment variables
+
+00:11:57.300 --> 00:12:01.899
+Regarding environment variables, Emacs can read and
+
+00:12:01.900 --> 00:12:05.399
+manipulate the environment variables, which in turn get
+
+00:12:05.400 --> 00:12:09.659
+passed on to processes which it launches. The
+
+00:12:09.660 --> 00:12:12.899
+general-purpose interactive commands for this are
+
+00:12:12.900 --> 00:12:18.499
+getenv and setenv. These commands
+
+00:12:18.500 --> 00:12:21.799
+deal with the one environment that is available throughout
+
+00:12:21.800 --> 00:12:25.699
+all parts of your running Emacs session. In other words,
+
+00:12:25.700 --> 00:12:28.999
+these functions deal with a global environment, which is
+
+00:12:29.000 --> 00:12:32.099
+the same wherever you are running getenv or
+
+00:12:32.100 --> 00:12:34.399
+setenv.
+
+00:13:00.340 --> 00:13:04.259
+An important exception is that every instance of Eshell
+
+00:13:04.260 --> 00:13:07.599
+maintains a distinct environment that will not be affected
+
+00:13:07.600 --> 00:13:13.980
+by setenv calls run in other buffers. Also, Eshell
+
+00:13:13.981 --> 00:13:16.446
+has some additional syntax for dealing with its
+
+00:13:16.447 --> 00:13:20.780
+environment, including the set and export syntax.
+
+00:13:38.647 --> 00:13:47.113
+Regarding job control and process management, Emacs does
+
+00:13:47.114 --> 00:13:50.880
+not provide job control in the way that Bash users are used
+
+00:13:50.881 --> 00:13:57.080
+to. We can, however, launch asynchronous processes, and do
+
+00:13:57.081 --> 00:14:01.580
+various things to them. From Eshell, or an eshell-command
+
+00:14:01.581 --> 00:14:07.180
+call, we can append the ampersand symbol to the command, and
+
+00:14:07.181 --> 00:14:11.013
+this will cause the process to run asynchronously in a
+
+00:14:11.014 --> 00:14:13.313
+dedicated buffer.
+
+00:14:20.881 --> 00:14:25.280
+Now, if the command is launched from Eshell, it will not
+
+00:14:25.281 --> 00:14:31.180
+actually run in a separate buffer, but the output will go to
+
+00:14:31.181 --> 00:14:33.413
+the Eshell buffer.
+
+NOTE Processes
+
+00:14:54.400 --> 00:14:59.580
+We can run the interactive command list-processes to see
+
+00:14:59.581 --> 00:15:02.846
+all the processes running for our current Emacs session.
+
+00:15:11.747 --> 00:15:17.646
+In Eshell, we can run the command "jobs" to get the same list.
+
+00:15:17.647 --> 00:15:22.813
+This will show the process name, process buffer name,
+
+00:15:22.814 --> 00:15:28.613
+process ID, and some other information. We can select the
+
+00:15:28.614 --> 00:15:32.880
+process buffer in the process list to bring up that process
+
+00:15:32.881 --> 00:15:36.213
+buffer.
+
+00:15:42.414 --> 00:15:47.046
+We can also use the interactive command signal-process to
+
+00:15:47.047 --> 00:15:52.980
+send any signal to a process, including "stop" to suspend the
+
+00:15:52.981 --> 00:15:58.380
+process, "continue" to resume the process, and "interrupt" or
+
+00:15:58.381 --> 00:16:02.546
+kill to terminate the process.
+
+NOTE Redirecting and pipelining input and output
+
+00:17:00.180 --> 00:17:04.813
+Regarding redirecting and pipelining input and output,
+
+00:17:04.814 --> 00:17:11.613
+Eshell does support redirection similar to Bash, so you can
+
+00:17:11.614 --> 00:17:17.046
+overwrite and append to files and some other objects. Input
+
+00:17:17.047 --> 00:17:22.380
+redirection is not yet implemented, but it is on the Eshell
+
+00:17:22.381 --> 00:17:29.213
+to-do list. Eshell also has pipes. The default pipe, which
+
+00:17:29.214 --> 00:17:33.220
+uses the familiar vertical bar symbol, pipes the data
+
+00:17:33.221 --> 00:17:36.980
+between the commands using an intermediate Emacs buffer.
+
+00:17:36.981 --> 00:17:41.200
+This, while usually quite practical, is less efficient
+
+00:17:41.201 --> 00:17:46.319
+than the system pipe. Therefore, Eshell also makes
+
+00:17:46.320 --> 00:17:50.146
+available a star-modified version, which uses the system
+
+00:17:50.147 --> 00:17:52.546
+pipe through a call to your system shell.
+
+00:17:56.881 --> 00:17:59.413
+So we can do things like
+
+00:18:02.340 --> 00:18:05.860
+direct output to a file.
+
+00:18:15.100 --> 00:18:20.240
+We're unfortunately not able to do input redirection, but
+
+00:18:20.241 --> 00:18:22.540
+we can use pipes.
+
+00:18:41.760 --> 00:18:45.639
+Elisp can manipulate and tie together processes in various
+
+00:18:45.640 --> 00:18:50.999
+ways, such as process filters and pipe processes, but I
+
+00:18:51.000 --> 00:18:56.559
+won't attempt to cover that. I feel like you should mention
+
+00:18:56.560 --> 00:19:02.119
+again that we have two kinds of pipes here available. So this
+
+00:19:02.120 --> 00:19:09.239
+pipe, the standard one, will pipe the data through Emacs
+
+00:19:09.240 --> 00:19:16.759
+buffers. That's very practical in most cases, but it is less
+
+00:19:16.760 --> 00:19:22.919
+efficient than piping through the system pipe. So Eshell
+
+00:19:22.920 --> 00:19:28.119
+makes available another symbol for that, star, vertical
+
+00:19:28.120 --> 00:19:38.339
+bar, that allows you to explicitly use the system pipe.
+
+00:19:38.340 --> 00:19:43.599
+Regarding scripting: Of course, using Emacs makes
+
+00:19:43.600 --> 00:19:47.959
+available all the power of the Elisp API and third-party
+
+00:19:47.960 --> 00:19:54.719
+packages, so we have that out of the gate. Eshell also has
+
+00:19:54.720 --> 00:19:59.639
+control flow statements, like an "if" construct and a "for"
+
+00:19:59.640 --> 00:20:06.519
+construct. See the Eshell info manual, section 3.7, for
+
+00:20:06.520 --> 00:20:07.719
+more details.
+
+NOTE Scripts
+
+00:20:09.440 --> 00:20:13.839
+And if you wish to write a script entirely in Eshell syntax,
+
+00:20:13.840 --> 00:20:18.559
+and store it in a separate file, this is possible with recent
+
+00:20:18.560 --> 00:20:20.159
+versions of Emacs.
+
+00:20:31.840 --> 00:20:34.679
+Here's an example of a brief script that I wrote.
+
+00:20:37.560 --> 00:20:42.679
+Unfortunately, an eshell mode for proper syntax
+
+00:20:42.680 --> 00:20:46.279
+highlighting is not yet available, but hopefully that will
+
+00:20:46.280 --> 00:20:51.279
+be forthcoming. Note that Eshell syntax allows elisp
+
+00:20:51.280 --> 00:20:55.079
+forms to be interspersed with regular command form for
+
+00:20:55.080 --> 00:20:58.759
+additional scripting power. We will discuss this a little
+
+00:20:58.760 --> 00:21:01.999
+more later.
+
+NOTE File system management
+
+00:21:11.780 --> 00:21:16.759
+Regarding file system management. In Emacs, many of the
+
+00:21:16.760 --> 00:21:20.239
+common file system operations are available as
+
+00:21:20.240 --> 00:21:26.759
+interactive commands. For example, M-x cd, to change your
+
+00:21:26.760 --> 00:21:32.839
+buffer's current working directory, and other M-x commands
+
+00:21:32.840 --> 00:21:37.439
+such as make-directory
+
+00:21:40.780 --> 00:21:42.679
+chmod,
+
+00:21:43.260 --> 00:21:51.159
+and delete-file. Of course, you can also drop into Eshell,
+
+00:21:53.840 --> 00:22:00.639
+or use M-x eshell-command to run the usual external commands
+
+00:22:00.640 --> 00:22:07.039
+for file system manipulation. Also, a file manager is built
+
+00:22:07.040 --> 00:22:14.279
+into Emacs, which can be run by calling M-x dired.
+
+00:22:19.640 --> 00:22:24.559
+The directory editor is powerful, but it is a bit strange to
+
+00:22:24.560 --> 00:22:28.679
+folks expecting something like Midnight Commander or the
+
+00:22:28.680 --> 00:22:35.639
+GNOME file manager. It gives us a number of helpful features
+
+00:22:35.640 --> 00:22:43.639
+like the ability to mark files, and to run elisp functions on
+
+00:22:44.700 --> 00:22:48.439
+them, and some other interesting ways to manipulate and
+
+00:22:48.440 --> 00:22:54.079
+rename the files. However, third-party Emacs extensions
+
+00:22:54.080 --> 00:22:58.479
+such as Midnight Commander Mode and Sunrise Commander are
+
+00:22:58.480 --> 00:23:03.879
+available to provide a Midnight Commander experience, for those who
+
+00:23:03.880 --> 00:23:10.319
+prefer that sort of file management.
+
+00:23:10.320 --> 00:23:14.879
+Emacs also has the nifty TRAMP functionality built in,
+
+00:23:14.880 --> 00:23:19.159
+which allows you, most of the time, to easily edit files on
+
+00:23:19.160 --> 00:23:22.719
+other computers, as well as manipulate the file system.
+
+00:23:23.180 --> 00:23:27.839
+This transparently works through SSH and some other
+
+00:23:27.840 --> 00:23:30.079
+protocols that you can specify.
+
+NOTE Networking
+
+00:23:43.560 --> 00:23:48.159
+Regarding networking features, I don't have a lot of
+
+00:23:48.160 --> 00:23:51.639
+interesting things to say about this at the present, so I'll
+
+00:23:51.640 --> 00:23:54.919
+skip through this quickly. But if you do a little research,
+
+00:23:54.920 --> 00:23:58.799
+you will see that Emacs has a lot of functionality relating
+
+00:23:58.800 --> 00:24:02.359
+to making network connections, interacting with the web,
+
+00:24:02.780 --> 00:24:07.859
+and such like, both built-in and in available packages, as
+
+00:24:07.860 --> 00:24:14.399
+well as modes for doing things like Web browsing and Gemini
+
+00:24:14.400 --> 00:24:20.599
+browsing. And of course, you can run the usual standard
+
+00:24:20.600 --> 00:24:23.639
+networking commands for your system through Eshell.
+
+NOTE A brief tour of Eshell
+
+00:24:30.120 --> 00:24:33.759
+So having put forward the main arguments for this talk, I
+
+00:24:33.760 --> 00:24:38.199
+would like to take some time now to give a brief tour of a few of
+
+00:24:38.200 --> 00:24:43.799
+the features of Eshell, the Emacs shell. It bears
+
+00:24:43.800 --> 00:24:46.999
+emphasizing that Eshell is not a drop-in replacement for
+
+00:24:47.000 --> 00:24:51.879
+Bash, or even a Bash clone, though I believe the developers
+
+00:24:51.880 --> 00:24:56.839
+are trying to make much of the syntax very similar. Also,
+
+00:24:56.840 --> 00:25:00.479
+Eshell is not a terminal emulator, and it will not display
+
+00:25:00.480 --> 00:25:04.679
+correctly applications which use advanced ANSI control
+
+00:25:04.680 --> 00:25:10.119
+codes. However, Eshell can be configured to be aware of such
+
+00:25:10.120 --> 00:25:13.300
+applications, and to run them automatically within the
+
+00:25:13.301 --> 00:25:19.940
+Emacs terminal emulator when launched. See section 5.1 of
+
+00:25:19.941 --> 00:25:24.100
+the Eshell manual titled Visual Commands.
+
+00:25:32.540 --> 00:25:36.759
+Though Eshell is not Bash, it has multiple features,
+
+00:25:36.760 --> 00:25:40.679
+pertaining mainly to its by-design Emacs integration,
+
+00:25:40.680 --> 00:25:44.639
+which may make it more appealing to use than Bash or another
+
+00:25:44.640 --> 00:25:45.359
+shell.
+
+00:25:48.160 --> 00:25:52.039
+For one, Eshell allows entering commands on the command
+
+00:25:52.040 --> 00:25:55.960
+line that are space and new line separated, without
+
+00:25:55.961 --> 00:26:01.280
+parentheses. Of course, all the other shells do this. But
+
+00:26:01.281 --> 00:26:06.280
+within Eshell, it is possible to enter internal Emacs
+
+00:26:06.281 --> 00:26:11.060
+functions, as well as external commands.
+
+00:26:13.240 --> 00:26:45.739
+This allows us to do things like this.
+
+00:26:45.740 --> 00:26:49.759
+As far as I understand, it is possible to enter any Emacs
+
+00:26:49.760 --> 00:26:53.959
+function on the Eshell command line. However, some special
+
+00:26:53.960 --> 00:26:58.399
+syntax may be required if you are trying to pass in something
+
+00:26:58.400 --> 00:27:00.799
+that is not a string or a number.
+
+00:27:04.380 --> 00:27:07.919
+As you might have noticed in the last example, Eshell makes
+
+00:27:07.920 --> 00:27:12.919
+it possible to use an Emacs buffer as a sink for output. It
+
+00:27:12.920 --> 00:27:18.039
+also allows using a buffer as a source of input, though this
+
+00:27:18.040 --> 00:27:21.839
+is slightly more complicated, since the buffer must be
+
+00:27:21.840 --> 00:27:27.199
+converted to a string first. I have distilled this down into
+
+00:27:27.200 --> 00:27:30.279
+my own function, named with the "at" symbol.
+
+00:27:36.640 --> 00:27:40.319
+And I will provide the brief snippet of code for this later.
+
+00:27:54.640 --> 00:28:02.499
+So to give an example, here's our messages buffer.
+
+00:28:02.500 --> 00:28:05.399
+And from Eshell, we can do something like this.
+
+00:28:29.780 --> 00:28:34.439
+Let's say here we wanted to grab our messages buffer to see
+
+00:28:34.440 --> 00:28:38.079
+everything that we had been loading during the startup
+
+00:28:38.080 --> 00:28:38.959
+process.
+
+00:28:48.060 --> 00:28:51.879
+So you can see how that could be very handy in a number of
+
+00:28:51.880 --> 00:28:52.959
+scenarios.
+
+00:28:55.060 --> 00:29:00.239
+I wanted to briefly mention that we have a helpful function
+
+00:29:00.240 --> 00:29:03.439
+here called eshell-insert-buffer-name,
+
+00:29:11.120 --> 00:29:15.359
+which allows us to insert a buffer name into the current
+
+00:29:15.360 --> 00:29:18.439
+buffer at point using completion,
+
+00:29:24.680 --> 00:29:32.879
+which can save you a lot of typing.
+
+00:29:32.880 --> 00:29:34.799
+Another nice feature of Eshell
+
+00:29:37.220 --> 00:29:41.199
+is that it allows integrating ELisp into the command line
+
+00:29:41.200 --> 00:29:48.879
+call. Let's give another example. Say we wanted to echo the
+
+00:29:48.880 --> 00:29:53.919
+date to an event file or an event log.
+
+00:29:56.720 --> 00:30:01.639
+I should probably take a moment to explain this asterisk
+
+00:30:01.640 --> 00:30:06.999
+that I'm occasionally using. So since Emacs, or excuse me,
+
+00:30:07.000 --> 00:30:11.719
+since Eshell can use internal or external Emacs, excuse me,
+
+00:30:11.720 --> 00:30:16.999
+internal Emacs commands or external commands, it may
+
+00:30:17.000 --> 00:30:21.679
+sometimes be necessary to clarify which one you want to use,
+
+00:30:22.380 --> 00:30:27.079
+since the names may overlap. Since my Eshell is configured
+
+00:30:27.080 --> 00:30:32.319
+by default to prefer the internal Emacs functions, then
+
+00:30:32.320 --> 00:30:37.799
+sometimes I have to use the asterisk to specify that I want
+
+00:30:37.800 --> 00:30:39.079
+the external version.
+
+00:30:42.680 --> 00:31:02.639
+Here I can insert a bit of Elisp,
+
+00:31:03.180 --> 00:31:06.119
+and then redirect the output to the event log.
+
+00:31:18.720 --> 00:31:22.639
+Last, I want to mention that there are some optional Eshell
+
+00:31:22.640 --> 00:31:27.159
+modules in Emacs, not turned on by default, which provide
+
+00:31:27.160 --> 00:31:29.039
+additional nifty features.
+
+00:31:40.540 --> 00:31:45.639
+On my system, I have most of the optional modules turned on.
+
+00:31:58.320 --> 00:32:03.199
+An interesting module is eshell-smart, which does various
+
+00:32:03.200 --> 00:32:07.319
+things with cursor positioning and scrolling, so as to make
+
+00:32:07.320 --> 00:32:10.399
+editing commands and reviewing output easier.
+
+00:32:18.340 --> 00:32:23.619
+Let's say I was to change directory to my boot directory
+
+00:32:30.880 --> 00:32:35.039
+and use a command which involves lots of output.
+
+00:32:39.900 --> 00:32:44.359
+You'll notice right away that the cursor positioning is set
+
+00:32:44.360 --> 00:32:48.719
+such that I'm immediately able to view the top of the output.
+
+00:32:48.720 --> 00:32:52.879
+Also, I'm able to use the space bar to page through the
+
+00:32:52.880 --> 00:32:56.079
+output.
+
+00:32:56.080 --> 00:33:01.919
+So this is an opinionated feature, which assumes that
+
+00:33:01.920 --> 00:33:05.399
+you're likely going to want to review the output
+
+00:33:05.400 --> 00:33:10.559
+immediately, or that you often will. Of course, you can
+
+00:33:10.560 --> 00:33:17.599
+always jump to the end.
+
+00:33:19.980 --> 00:33:23.919
+Also, after a command is entered, the cursor is immediately
+
+00:33:23.920 --> 00:33:28.279
+repositioned to make it easy to edit the command.
+
+00:33:53.020 --> 00:33:56.519
+And also, if I don't want to edit the command, and I do not want
+
+00:33:56.520 --> 00:33:59.679
+to review the output, I can simply start typing another
+
+00:33:59.680 --> 00:34:00.359
+command.
+
+00:34:11.260 --> 00:34:15.519
+So that covers the brief tour of Eshell features.
+
+00:34:17.760 --> 00:34:21.127
+And that basically ends my talk.
+
+NOTE Login shell
+
+00:34:21.128 --> 00:34:22.380
+However, a handful of
+
+00:34:22.381 --> 00:34:28.719
+viewers might be wondering, is it possible to set Emacs to be
+
+00:34:28.720 --> 00:34:37.639
+my login shell to completely replace bash in your login
+
+00:34:37.640 --> 00:34:43.719
+experience? The answer is yes, but in practice there are
+
+00:34:43.720 --> 00:34:47.399
+various difficulties involved which might make it not
+
+00:34:47.400 --> 00:34:48.359
+worth the trouble.
+
+00:35:00.440 --> 00:35:03.479
+Before doing this, you'll have to answer a few initial
+
+00:35:03.480 --> 00:35:09.519
+questions. Do you want to make a new Emacs instance every
+
+00:35:09.520 --> 00:35:13.759
+time you log in, or do you want it to connect to an Emacs
+
+00:35:13.760 --> 00:35:20.599
+server? Which is popular among Emacs users, to reuse the
+
+00:35:20.600 --> 00:35:26.599
+session, or to connect to the existing session. Also, do you
+
+00:35:26.600 --> 00:35:30.639
+want a different result, whether in graphical or a terminal
+
+00:35:30.640 --> 00:35:34.679
+environment? And are you okay with your initialization
+
+00:35:34.680 --> 00:35:39.559
+file being run every time you log in, including every new tab
+
+00:35:39.560 --> 00:35:44.520
+you open in a terminal emulator? If we assume that you are
+
+00:35:44.521 --> 00:35:50.339
+using a system with /etc/passwd user management, you get
+
+00:35:50.340 --> 00:35:53.999
+one field to specify the name of the shell program that you
+
+00:35:54.000 --> 00:35:58.479
+want to use, and no arguments are allowed. So maybe you can
+
+00:35:58.480 --> 00:36:02.679
+see how this might be challenging, depending on your
+
+00:36:02.680 --> 00:36:06.879
+answers to the previous questions. You can work around
+
+00:36:06.880 --> 00:36:10.479
+these issues in various ways, like modifying the
+
+00:36:10.480 --> 00:36:15.439
+authentication system, or by specifying a script for your
+
+00:36:15.440 --> 00:36:21.799
+login shell. But if your normal workflow is to simply log in
+
+00:36:21.800 --> 00:36:25.679
+and start Emacs and run that Emacs session until your next
+
+00:36:25.680 --> 00:36:36.979
+reboot, then it probably isn't worth the bother.
+
+NOTE Resources
+
+00:36:36.980 --> 00:36:41.999
+So thank you for listening to my talk, Emacs as a Shell, by
+
+00:36:42.000 --> 00:36:46.319
+Christopher Howard for Emacs Conference 2024.
+
+00:36:46.860 --> 00:36:51.519
+At the bottom of this page, you can see a link to the
+
+00:36:51.520 --> 00:36:56.919
+repository containing the brief amount of code that was
+
+00:36:56.920 --> 00:37:03.679
+featured here in this video, as well as a link to my personal
+
+00:37:03.680 --> 00:37:10.279
+Gemini gemlog, as well as to a Web portal version of that.
+
+00:37:10.280 --> 00:37:13.000
+Thank you.
diff --git a/2024/info/shell-after.md b/2024/info/shell-after.md
index 4f9b3cff..c1007582 100644
--- a/2024/info/shell-after.md
+++ b/2024/info/shell-after.md
@@ -1,6 +1,427 @@
<!-- Automatically generated by emacsconf-publish-after-page -->
+<a name="shell-mainVideo-transcript"></a>
+# Transcript
+
+
+[[!template new="1" text="""Introduction""" start="00:00:02.940" video="mainVideo-shell" id="subtitle"]]
+
+[[!template text="""Welcome to Emacs as a Shell, a talk by Christopher Howard for""" start="00:00:02.940" video="mainVideo-shell" id="subtitle"]]
+[[!template text="""Emacs Conference 2024.""" start="00:00:08.720" video="mainVideo-shell" id="subtitle"]]
+[[!template text="""In this talk, I would like to explore, or advocate for, a""" start="00:00:13.800" video="mainVideo-shell" id="subtitle"]]
+[[!template text="""particular perspective. I want to encourage people to""" start="00:00:18.400" video="mainVideo-shell" id="subtitle"]]
+[[!template text="""think of Emacs not as simply an editor or a development""" start="00:00:21.920" video="mainVideo-shell" id="subtitle"]]
+[[!template text="""environment, but rather as a shell, or at least something""" start="00:00:26.480" video="mainVideo-shell" id="subtitle"]]
+[[!template text="""that allows us to do most of the things that we might""" start="00:00:31.120" video="mainVideo-shell" id="subtitle"]]
+[[!template text="""otherwise want to do from a shell.""" start="00:00:33.920" video="mainVideo-shell" id="subtitle"]]
+
+[[!template new="1" text="""What do I mean by shell?""" start="00:00:37.881" video="mainVideo-shell" id="subtitle"]]
+
+[[!template text="""What do I mean by shell? By""" start="00:00:37.881" video="mainVideo-shell" id="subtitle"]]
+[[!template text="""shell, I mean basically an interface that allows us to""" start="00:00:40.840" video="mainVideo-shell" id="subtitle"]]
+[[!template text="""interact with the rest of our system by entering commands.""" start="00:00:45.440" video="mainVideo-shell" id="subtitle"]]
+[[!template text="""That definition is, perhaps, a little too broad, and so I""" start="00:00:50.680" video="mainVideo-shell" id="subtitle"]]
+[[!template text="""will try to narrow it down with a list of features that,""" start="00:00:55.040" video="mainVideo-shell" id="subtitle"]]
+[[!template text="""historically, we have come to expect from a shell. The Bash""" start="00:00:58.440" video="mainVideo-shell" id="subtitle"]]
+[[!template text="""shell is one very portable and well-known shell, and for""" start="00:01:03.280" video="mainVideo-shell" id="subtitle"]]
+[[!template text="""many of us it is maybe the prototypical example. But in the""" start="00:01:07.720" video="mainVideo-shell" id="subtitle"]]
+[[!template text="""past there have been many other shells, and there are other""" start="00:01:13.600" video="mainVideo-shell" id="subtitle"]]
+[[!template text="""shells available today. If we are willing to be flexible in""" start="00:01:16.880" video="mainVideo-shell" id="subtitle"]]
+[[!template text="""our thinking, we can think of Emacs as being a shell, or at""" start="00:01:21.120" video="mainVideo-shell" id="subtitle"]]
+[[!template text="""least providing most of the functionality that we expect""" start="00:01:25.560" video="mainVideo-shell" id="subtitle"]]
+[[!template text="""from a shell.""" start="00:01:28.880" video="mainVideo-shell" id="subtitle"]]
+
+[[!template new="1" text="""What I do not mean""" start="00:01:38.560" video="mainVideo-shell" id="subtitle"]]
+
+[[!template text="""Before further expanding on this idea, I must emphasize""" start="00:01:38.560" video="mainVideo-shell" id="subtitle"]]
+[[!template text="""what I do not mean. First of all, I am not talking about""" start="00:01:42.760" video="mainVideo-shell" id="subtitle"]]
+[[!template text="""running Bash, or some other external shell, from within""" start="00:01:47.160" video="mainVideo-shell" id="subtitle"]]
+[[!template text="""Emacs, although this is certainly possible. I am arguing,""" start="00:01:51.440" video="mainVideo-shell" id="subtitle"]]
+[[!template text="""rather, for using Emacs as a shell, instead of other shells.""" start="00:01:56.440" video="mainVideo-shell" id="subtitle"]]
+[[!template text="""Second, I do not mean running a terminal emulator from""" start="00:02:02.440" video="mainVideo-shell" id="subtitle"]]
+[[!template text="""within Emacs. Emacs has a built-in terminal emulator, but""" start="00:02:06.240" video="mainVideo-shell" id="subtitle"]]
+[[!template text="""this is not what I mean. A terminal emulator is essentially a""" start="00:02:11.400" video="mainVideo-shell" id="subtitle"]]
+[[!template text="""program designed to control the cursor and text appearance""" start="00:02:15.840" video="mainVideo-shell" id="subtitle"]]
+[[!template text="""in response to various control codes in order to mimic a""" start="00:02:20.040" video="mainVideo-shell" id="subtitle"]]
+[[!template text="""terminal display device. There are certainly legitimate""" start="00:02:24.000" video="mainVideo-shell" id="subtitle"]]
+[[!template text="""reasons to do this. Nevertheless, in general, it does not""" start="00:02:28.440" video="mainVideo-shell" id="subtitle"]]
+[[!template text="""make much sense to run a terminal emulator within Emacs,""" start="00:02:32.560" video="mainVideo-shell" id="subtitle"]]
+[[!template text="""because Emacs has its own commands for controlling the""" start="00:02:36.520" video="mainVideo-shell" id="subtitle"]]
+[[!template text="""cursor and text appearance. Also, due to the way Emacs was""" start="00:02:39.720" video="mainVideo-shell" id="subtitle"]]
+[[!template text="""designed historically, Emacs itself believes that it is""" start="00:02:45.040" video="mainVideo-shell" id="subtitle"]]
+[[!template text="""running on a terminal. So you end up with layers upon layers""" start="00:02:48.920" video="mainVideo-shell" id="subtitle"]]
+[[!template text="""of terminal emulation. Anyhow, at the end of the day, Emacs""" start="00:02:53.120" video="mainVideo-shell" id="subtitle"]]
+[[!template text="""will not perform as well as a dedicated terminal emulator""" start="00:02:58.200" video="mainVideo-shell" id="subtitle"]]
+[[!template text="""program. I also think that, as we try to force ANSI terminal""" start="00:03:01.840" video="mainVideo-shell" id="subtitle"]]
+[[!template text="""emulation into our Emacs workflow, this ultimately will be""" start="00:03:08.080" video="mainVideo-shell" id="subtitle"]]
+[[!template text="""a hindrance to us in taking advantage of the natural and""" start="00:03:12.360" video="mainVideo-shell" id="subtitle"]]
+[[!template text="""pleasant interfaces that are already available to us""" start="00:03:15.880" video="mainVideo-shell" id="subtitle"]]
+[[!template text="""within Emacs. In brief, if your goal is simply to figure out""" start="00:03:19.320" video="mainVideo-shell" id="subtitle"]]
+[[!template text="""how to be able to do all your normal Bash command line""" start="00:03:25.000" video="mainVideo-shell" id="subtitle"]]
+[[!template text="""wizardry from within an Emacs window instead of a GNOME""" start="00:03:28.500" video="mainVideo-shell" id="subtitle"]]
+[[!template text="""console window, you are headed down a different set of train""" start="00:03:32.360" video="mainVideo-shell" id="subtitle"]]
+[[!template text="""tracks than I am. Also, something which I fear may confuse""" start="00:03:36.480" video="mainVideo-shell" id="subtitle"]]
+[[!template text="""the issue for some viewers is the fact that Emacs ships with""" start="00:03:43.200" video="mainVideo-shell" id="subtitle"]]
+[[!template text="""its own unique built-in shell, called the Emacs shell, or""" start="00:03:47.920" video="mainVideo-shell" id="subtitle"]]
+[[!template text="""Eshell.""" start="00:03:52.840" video="mainVideo-shell" id="subtitle"]]
+[[!template text="""Eshell aims to be a legitimate shell, and provides a very""" start="00:03:59.080" video="mainVideo-shell" id="subtitle"]]
+[[!template text="""similar experience to other shells like Bash, while being""" start="00:04:02.960" video="mainVideo-shell" id="subtitle"]]
+[[!template text="""well integrated into the Emacs interface, and without""" start="00:04:07.600" video="mainVideo-shell" id="subtitle"]]
+[[!template text="""giving up the power of the Emacs Lisp engine. Eshell will be""" start="00:04:11.120" video="mainVideo-shell" id="subtitle"]]
+[[!template text="""mentioned multiple times in this talk. The entire talk""" start="00:04:15.640" video="mainVideo-shell" id="subtitle"]]
+[[!template text="""could, in fact, be about Eshell, except that I want the talk""" start="00:04:19.140" video="mainVideo-shell" id="subtitle"]]
+[[!template text="""to cover all aspects of Emacs shell-like functionality""" start="00:04:24.180" video="mainVideo-shell" id="subtitle"]]
+[[!template text="""through its other tools, such as interactive commands and""" start="00:04:28.320" video="mainVideo-shell" id="subtitle"]]
+[[!template text="""special modes. So, hopefully we can keep distinct in our""" start="00:04:32.080" video="mainVideo-shell" id="subtitle"]]
+[[!template text="""mind the ideas of Emacs as a shell versus the Emacs shell,""" start="00:04:37.080" video="mainVideo-shell" id="subtitle"]]
+[[!template text="""though the latter is an important part of the former.""" start="00:04:43.880" video="mainVideo-shell" id="subtitle"]]
+
+[[!template new="1" text="""What is a shell?""" start="00:04:50.160" video="mainVideo-shell" id="subtitle"]]
+
+[[!template text="""Let's get back to the fundamental idea of what is a shell. In""" start="00:04:50.160" video="mainVideo-shell" id="subtitle"]]
+[[!template text="""the broadest definition, a shell is an interface which""" start="00:04:55.400" video="mainVideo-shell" id="subtitle"]]
+[[!template text="""allows you to interact with your operating system through""" start="00:04:59.160" video="mainVideo-shell" id="subtitle"]]
+[[!template text="""commands. However, from a historical perspective, there""" start="00:05:02.280" video="mainVideo-shell" id="subtitle"]]
+[[!template text="""are a few basic capabilities which we expect to be part of""" start="00:05:06.841" video="mainVideo-shell" id="subtitle"]]
+[[!template text="""every shell.""" start="00:05:10.700" video="mainVideo-shell" id="subtitle"]]
+[[!template text="""First of all, the shell provides a means of launching""" start="00:05:17.881" video="mainVideo-shell" id="subtitle"]]
+[[!template text="""external programs. Some internal or built-in commands""" start="00:05:21.421" video="mainVideo-shell" id="subtitle"]]
+[[!template text="""might also be made available. Second, the shell provides a""" start="00:05:26.441" video="mainVideo-shell" id="subtitle"]]
+[[!template text="""means of managing environment variables. In the past,""" start="00:05:31.680" video="mainVideo-shell" id="subtitle"]]
+[[!template text="""environment variables often played a critical role as a""" start="00:05:36.821" video="mainVideo-shell" id="subtitle"]]
+[[!template text="""means of passing in options, file names, device names, and""" start="00:05:40.581" video="mainVideo-shell" id="subtitle"]]
+[[!template text="""suchlike to external programs. This is not quite as common""" start="00:05:45.361" video="mainVideo-shell" id="subtitle"]]
+[[!template text="""today, but the environment still plays a critical role in""" start="00:05:50.120" video="mainVideo-shell" id="subtitle"]]
+[[!template text="""managing things such as the path to executables and""" start="00:05:54.081" video="mainVideo-shell" id="subtitle"]]
+[[!template text="""libraries, as well as various other user, desktop, and""" start="00:05:57.620" video="mainVideo-shell" id="subtitle"]]
+[[!template text="""system settings. The shell modifies the environment and""" start="00:06:03.081" video="mainVideo-shell" id="subtitle"]]
+[[!template text="""passes it on to external programs.""" start="00:06:08.281" video="mainVideo-shell" id="subtitle"]]
+[[!template text="""Historically, job control was expected to be either a""" start="00:06:13.540" video="mainVideo-shell" id="subtitle"]]
+[[!template text="""function of the shell, or easily accessible from it.""" start="00:06:17.581" video="mainVideo-shell" id="subtitle"]]
+[[!template text="""Usually today, our personal computing is not""" start="00:06:21.561" video="mainVideo-shell" id="subtitle"]]
+[[!template text="""batch-oriented. But typically, shells can run multiple""" start="00:06:24.020" video="mainVideo-shell" id="subtitle"]]
+[[!template text="""processes simultaneously, as well as provide means to""" start="00:06:29.281" video="mainVideo-shell" id="subtitle"]]
+[[!template text="""suspend and terminate processes, which are useful""" start="00:06:34.600" video="mainVideo-shell" id="subtitle"]]
+[[!template text="""features. Shells should be able to redirect and pipeline""" start="00:06:38.781" video="mainVideo-shell" id="subtitle"]]
+[[!template text="""process input and output. This allows the user to connect""" start="00:06:44.881" video="mainVideo-shell" id="subtitle"]]
+[[!template text="""process input and output with files, devices, or other""" start="00:06:49.101" video="mainVideo-shell" id="subtitle"]]
+[[!template text="""processes. Finally, shells are expected to have some""" start="00:06:53.881" video="mainVideo-shell" id="subtitle"]]
+[[!template text="""limited scripting capability, such as the""" start="00:06:58.814" video="mainVideo-shell" id="subtitle"]]
+[[!template text="""POSIX-compliant set of program statements and""" start="00:07:02.381" video="mainVideo-shell" id="subtitle"]]
+[[!template text="""conditionals that Bash provides.""" start="00:07:06.614" video="mainVideo-shell" id="subtitle"]]
+[[!template text="""As command-line wizards, there are a number of tasks we""" start="00:07:11.100" video="mainVideo-shell" id="subtitle"]]
+[[!template text="""expect to be able to do quickly and easily from our shell,""" start="00:07:15.114" video="mainVideo-shell" id="subtitle"]]
+[[!template text="""even though these tasks are not the domain of the shell""" start="00:07:18.660" video="mainVideo-shell" id="subtitle"]]
+[[!template text="""itself. A common task is file management and navigation. We""" start="00:07:21.647" video="mainVideo-shell" id="subtitle"]]
+[[!template text="""quickly navigate and manipulate the file system with""" start="00:07:27.881" video="mainVideo-shell" id="subtitle"]]
+[[!template text="""standard utilities that do things like change the current""" start="00:07:31.114" video="mainVideo-shell" id="subtitle"]]
+[[!template text="""working directory, rename files, move files, and delete""" start="00:07:34.814" video="mainVideo-shell" id="subtitle"]]
+[[!template text="""files. We usually expect to have access to some additional""" start="00:07:39.381" video="mainVideo-shell" id="subtitle"]]
+[[!template text="""process management utilities. These allow us to do things""" start="00:07:44.147" video="mainVideo-shell" id="subtitle"]]
+[[!template text="""such as find out the status of all processes running on the""" start="00:07:48.381" video="mainVideo-shell" id="subtitle"]]
+[[!template text="""system, and send signals to processes. Finally, we expect""" start="00:07:51.781" video="mainVideo-shell" id="subtitle"]]
+[[!template text="""to have access to some basic networking utilities. For""" start="00:07:57.981" video="mainVideo-shell" id="subtitle"]]
+[[!template text="""example, we should be able to run commands that set up""" start="00:08:02.114" video="mainVideo-shell" id="subtitle"]]
+[[!template text="""network interfaces, ping computers, and download files.""" start="00:08:05.414" video="mainVideo-shell" id="subtitle"]]
+[[!template text="""With a little reflection, we can see that Emacs can provide""" start="00:08:09.514" video="mainVideo-shell" id="subtitle"]]
+[[!template text="""all or nearly all of the functionality we have described so""" start="00:08:16.081" video="mainVideo-shell" id="subtitle"]]
+[[!template text="""far. And the functionality can be called conveniently""" start="00:08:20.147" video="mainVideo-shell" id="subtitle"]]
+[[!template text="""through one of several methods.""" start="00:08:24.047" video="mainVideo-shell" id="subtitle"]]
+[[!template text="""Either a normal interactive call, like M-x something, or a""" start="00:08:33.520" video="mainVideo-shell" id="subtitle"]]
+[[!template text="""call to an elisp function,""" start="00:08:43.847" video="mainVideo-shell" id="subtitle"]]
+[[!template text="""or through Eshell commands, or through some special buffer""" start="00:08:53.620" video="mainVideo-shell" id="subtitle"]]
+[[!template text="""mode, such as the directory editor, which provides its own""" start="00:09:01.181" video="mainVideo-shell" id="subtitle"]]
+[[!template text="""interface to some functionality.""" start="00:09:06.947" video="mainVideo-shell" id="subtitle"]]
+[[!template text="""It may be going too far to say that Emacs is a full replacement""" start="00:09:09.414" video="mainVideo-shell" id="subtitle"]]
+[[!template text="""for shells like Bash. Nevertheless, we can see that Emacs""" start="00:09:17.414" video="mainVideo-shell" id="subtitle"]]
+[[!template text="""can do most of the things that we might otherwise do with our""" start="00:09:21.714" video="mainVideo-shell" id="subtitle"]]
+[[!template text="""shell.""" start="00:09:25.681" video="mainVideo-shell" id="subtitle"]]
+
+[[!template new="1" text="""Launching external processes""" start="00:09:26.912" video="mainVideo-shell" id="subtitle"]]
+
+[[!template text="""Let us give some examples. First, can Emacs launch""" start="00:09:26.912" video="mainVideo-shell" id="subtitle"]]
+[[!template text="""external commands? Of course. Now, there are something""" start="00:09:32.514" video="mainVideo-shell" id="subtitle"]]
+[[!template text="""like a half-dozen different ways to do that within Emacs, and""" start="00:09:36.681" video="mainVideo-shell" id="subtitle"]]
+[[!template text="""some are more convenient than others. From any Elisp""" start="00:09:40.447" video="mainVideo-shell" id="subtitle"]]
+[[!template text="""program, we can call functions like make-process and""" start="00:09:46.714" video="mainVideo-shell" id="subtitle"]]
+[[!template text="""call-process to launch external processes.""" start="00:09:50.781" video="mainVideo-shell" id="subtitle"]]
+[[!template text="""These, however, generally are not convenient for quick,""" start="00:10:12.460" video="mainVideo-shell" id="subtitle"]]
+[[!template text="""one-off commands. Another option would be to run Eshell,""" start="00:10:16.847" video="mainVideo-shell" id="subtitle"]]
+[[!template text="""which would allow us to call the external program from a""" start="00:10:22.381" video="mainVideo-shell" id="subtitle"]]
+[[!template text="""familiar command line prompt.""" start="00:10:26.581" video="mainVideo-shell" id="subtitle"]]
+[[!template text="""If we do not actually want to drop into Eshell just to run one""" start="00:10:34.160" video="mainVideo-shell" id="subtitle"]]
+[[!template text="""command, we also have the interactive command,""" start="00:10:38.881" video="mainVideo-shell" id="subtitle"]]
+[[!template text="""eshell-command,""" start="00:10:42.214" video="mainVideo-shell" id="subtitle"]]
+[[!template text="""which would allow us to call the external program from a""" start="00:10:52.420" video="mainVideo-shell" id="subtitle"]]
+[[!template text="""familiar command line prompt.""" start="00:10:56.747" video="mainVideo-shell" id="subtitle"]]
+[[!template text="""If we do not actually want to drop an""" start="00:11:09.940" video="mainVideo-shell" id="subtitle"]]
+[[!template text="""Eshell just to run one command, as I just mentioned, we also""" start="00:11:12.081" video="mainVideo-shell" id="subtitle"]]
+[[!template text="""have the interactive command eshell-command, which allows""" start="00:11:15.700" video="mainVideo-shell" id="subtitle"]]
+[[!template text="""us to enter in a one-off command and run that immediately.""" start="00:11:19.800" video="mainVideo-shell" id="subtitle"]]
+[[!template text="""And finally, there is also an interactive command called""" start="00:11:25.420" video="mainVideo-shell" id="subtitle"]]
+[[!template text="""simply shell-command.""" start="00:11:28.800" video="mainVideo-shell" id="subtitle"]]
+[[!template text="""Shell command is like Eshell command, but instead passes""" start="00:11:34.600" video="mainVideo-shell" id="subtitle"]]
+[[!template text="""the command off to our system shell, for example, bash.""" start="00:11:39.100" video="mainVideo-shell" id="subtitle"]]
+[[!template text="""This is cheating, of course, but it might be useful or convenient""" start="00:11:43.940" video="mainVideo-shell" id="subtitle"]]
+[[!template text="""in some scenarios.""" start="00:11:48.600" video="mainVideo-shell" id="subtitle"]]
+
+[[!template new="1" text="""Environment variables""" start="00:11:57.300" video="mainVideo-shell" id="subtitle"]]
+
+[[!template text="""Regarding environment variables, Emacs can read and""" start="00:11:57.300" video="mainVideo-shell" id="subtitle"]]
+[[!template text="""manipulate the environment variables, which in turn get""" start="00:12:01.900" video="mainVideo-shell" id="subtitle"]]
+[[!template text="""passed on to processes which it launches. The""" start="00:12:05.400" video="mainVideo-shell" id="subtitle"]]
+[[!template text="""general-purpose interactive commands for this are""" start="00:12:09.660" video="mainVideo-shell" id="subtitle"]]
+[[!template text="""getenv and setenv. These commands""" start="00:12:12.900" video="mainVideo-shell" id="subtitle"]]
+[[!template text="""deal with the one environment that is available throughout""" start="00:12:18.500" video="mainVideo-shell" id="subtitle"]]
+[[!template text="""all parts of your running Emacs session. In other words,""" start="00:12:21.800" video="mainVideo-shell" id="subtitle"]]
+[[!template text="""these functions deal with a global environment, which is""" start="00:12:25.700" video="mainVideo-shell" id="subtitle"]]
+[[!template text="""the same wherever you are running getenv or""" start="00:12:29.000" video="mainVideo-shell" id="subtitle"]]
+[[!template text="""setenv.""" start="00:12:32.100" video="mainVideo-shell" id="subtitle"]]
+[[!template text="""An important exception is that every instance of Eshell""" start="00:13:00.340" video="mainVideo-shell" id="subtitle"]]
+[[!template text="""maintains a distinct environment that will not be affected""" start="00:13:04.260" video="mainVideo-shell" id="subtitle"]]
+[[!template text="""by setenv calls run in other buffers. Also, Eshell""" start="00:13:07.600" video="mainVideo-shell" id="subtitle"]]
+[[!template text="""has some additional syntax for dealing with its""" start="00:13:13.981" video="mainVideo-shell" id="subtitle"]]
+[[!template text="""environment, including the set and export syntax.""" start="00:13:16.447" video="mainVideo-shell" id="subtitle"]]
+[[!template text="""Regarding job control and process management, Emacs does""" start="00:13:38.647" video="mainVideo-shell" id="subtitle"]]
+[[!template text="""not provide job control in the way that Bash users are used""" start="00:13:47.114" video="mainVideo-shell" id="subtitle"]]
+[[!template text="""to. We can, however, launch asynchronous processes, and do""" start="00:13:50.881" video="mainVideo-shell" id="subtitle"]]
+[[!template text="""various things to them. From Eshell, or an eshell-command""" start="00:13:57.081" video="mainVideo-shell" id="subtitle"]]
+[[!template text="""call, we can append the ampersand symbol to the command, and""" start="00:14:01.581" video="mainVideo-shell" id="subtitle"]]
+[[!template text="""this will cause the process to run asynchronously in a""" start="00:14:07.181" video="mainVideo-shell" id="subtitle"]]
+[[!template text="""dedicated buffer.""" start="00:14:11.014" video="mainVideo-shell" id="subtitle"]]
+[[!template text="""Now, if the command is launched from Eshell, it will not""" start="00:14:20.881" video="mainVideo-shell" id="subtitle"]]
+[[!template text="""actually run in a separate buffer, but the output will go to""" start="00:14:25.281" video="mainVideo-shell" id="subtitle"]]
+[[!template text="""the Eshell buffer.""" start="00:14:31.181" video="mainVideo-shell" id="subtitle"]]
+
+[[!template new="1" text="""Processes""" start="00:14:54.400" video="mainVideo-shell" id="subtitle"]]
+
+[[!template text="""We can run the interactive command list-processes to see""" start="00:14:54.400" video="mainVideo-shell" id="subtitle"]]
+[[!template text="""all the processes running for our current Emacs session.""" start="00:14:59.581" video="mainVideo-shell" id="subtitle"]]
+[[!template text="""In Eshell, we can run the command &quot;jobs&quot; to get the same list.""" start="00:15:11.747" video="mainVideo-shell" id="subtitle"]]
+[[!template text="""This will show the process name, process buffer name,""" start="00:15:17.647" video="mainVideo-shell" id="subtitle"]]
+[[!template text="""process ID, and some other information. We can select the""" start="00:15:22.814" video="mainVideo-shell" id="subtitle"]]
+[[!template text="""process buffer in the process list to bring up that process""" start="00:15:28.614" video="mainVideo-shell" id="subtitle"]]
+[[!template text="""buffer.""" start="00:15:32.881" video="mainVideo-shell" id="subtitle"]]
+[[!template text="""We can also use the interactive command signal-process to""" start="00:15:42.414" video="mainVideo-shell" id="subtitle"]]
+[[!template text="""send any signal to a process, including &quot;stop&quot; to suspend the""" start="00:15:47.047" video="mainVideo-shell" id="subtitle"]]
+[[!template text="""process, &quot;continue&quot; to resume the process, and &quot;interrupt&quot; or""" start="00:15:52.981" video="mainVideo-shell" id="subtitle"]]
+[[!template text="""kill to terminate the process.""" start="00:15:58.381" video="mainVideo-shell" id="subtitle"]]
+
+[[!template new="1" text="""Redirecting and pipelining input and output""" start="00:17:00.180" video="mainVideo-shell" id="subtitle"]]
+
+[[!template text="""Regarding redirecting and pipelining input and output,""" start="00:17:00.180" video="mainVideo-shell" id="subtitle"]]
+[[!template text="""Eshell does support redirection similar to Bash, so you can""" start="00:17:04.814" video="mainVideo-shell" id="subtitle"]]
+[[!template text="""overwrite and append to files and some other objects. Input""" start="00:17:11.614" video="mainVideo-shell" id="subtitle"]]
+[[!template text="""redirection is not yet implemented, but it is on the Eshell""" start="00:17:17.047" video="mainVideo-shell" id="subtitle"]]
+[[!template text="""to-do list. Eshell also has pipes. The default pipe, which""" start="00:17:22.381" video="mainVideo-shell" id="subtitle"]]
+[[!template text="""uses the familiar vertical bar symbol, pipes the data""" start="00:17:29.214" video="mainVideo-shell" id="subtitle"]]
+[[!template text="""between the commands using an intermediate Emacs buffer.""" start="00:17:33.221" video="mainVideo-shell" id="subtitle"]]
+[[!template text="""This, while usually quite practical, is less efficient""" start="00:17:36.981" video="mainVideo-shell" id="subtitle"]]
+[[!template text="""than the system pipe. Therefore, Eshell also makes""" start="00:17:41.201" video="mainVideo-shell" id="subtitle"]]
+[[!template text="""available a star-modified version, which uses the system""" start="00:17:46.320" video="mainVideo-shell" id="subtitle"]]
+[[!template text="""pipe through a call to your system shell.""" start="00:17:50.147" video="mainVideo-shell" id="subtitle"]]
+[[!template text="""So we can do things like""" start="00:17:56.881" video="mainVideo-shell" id="subtitle"]]
+[[!template text="""direct output to a file.""" start="00:18:02.340" video="mainVideo-shell" id="subtitle"]]
+[[!template text="""We're unfortunately not able to do input redirection, but""" start="00:18:15.100" video="mainVideo-shell" id="subtitle"]]
+[[!template text="""we can use pipes.""" start="00:18:20.241" video="mainVideo-shell" id="subtitle"]]
+[[!template text="""Elisp can manipulate and tie together processes in various""" start="00:18:41.760" video="mainVideo-shell" id="subtitle"]]
+[[!template text="""ways, such as process filters and pipe processes, but I""" start="00:18:45.640" video="mainVideo-shell" id="subtitle"]]
+[[!template text="""won't attempt to cover that. I feel like you should mention""" start="00:18:51.000" video="mainVideo-shell" id="subtitle"]]
+[[!template text="""again that we have two kinds of pipes here available. So this""" start="00:18:56.560" video="mainVideo-shell" id="subtitle"]]
+[[!template text="""pipe, the standard one, will pipe the data through Emacs""" start="00:19:02.120" video="mainVideo-shell" id="subtitle"]]
+[[!template text="""buffers. That's very practical in most cases, but it is less""" start="00:19:09.240" video="mainVideo-shell" id="subtitle"]]
+[[!template text="""efficient than piping through the system pipe. So Eshell""" start="00:19:16.760" video="mainVideo-shell" id="subtitle"]]
+[[!template text="""makes available another symbol for that, star, vertical""" start="00:19:22.920" video="mainVideo-shell" id="subtitle"]]
+[[!template text="""bar, that allows you to explicitly use the system pipe.""" start="00:19:28.120" video="mainVideo-shell" id="subtitle"]]
+[[!template text="""Regarding scripting: Of course, using Emacs makes""" start="00:19:38.340" video="mainVideo-shell" id="subtitle"]]
+[[!template text="""available all the power of the Elisp API and third-party""" start="00:19:43.600" video="mainVideo-shell" id="subtitle"]]
+[[!template text="""packages, so we have that out of the gate. Eshell also has""" start="00:19:47.960" video="mainVideo-shell" id="subtitle"]]
+[[!template text="""control flow statements, like an &quot;if&quot; construct and a &quot;for&quot;""" start="00:19:54.720" video="mainVideo-shell" id="subtitle"]]
+[[!template text="""construct. See the Eshell info manual, section 3.7, for""" start="00:19:59.640" video="mainVideo-shell" id="subtitle"]]
+[[!template text="""more details.""" start="00:20:06.520" video="mainVideo-shell" id="subtitle"]]
+
+[[!template new="1" text="""Scripts""" start="00:20:09.440" video="mainVideo-shell" id="subtitle"]]
+
+[[!template text="""And if you wish to write a script entirely in Eshell syntax,""" start="00:20:09.440" video="mainVideo-shell" id="subtitle"]]
+[[!template text="""and store it in a separate file, this is possible with recent""" start="00:20:13.840" video="mainVideo-shell" id="subtitle"]]
+[[!template text="""versions of Emacs.""" start="00:20:18.560" video="mainVideo-shell" id="subtitle"]]
+[[!template text="""Here's an example of a brief script that I wrote.""" start="00:20:31.840" video="mainVideo-shell" id="subtitle"]]
+[[!template text="""Unfortunately, an eshell mode for proper syntax""" start="00:20:37.560" video="mainVideo-shell" id="subtitle"]]
+[[!template text="""highlighting is not yet available, but hopefully that will""" start="00:20:42.680" video="mainVideo-shell" id="subtitle"]]
+[[!template text="""be forthcoming. Note that Eshell syntax allows elisp""" start="00:20:46.280" video="mainVideo-shell" id="subtitle"]]
+[[!template text="""forms to be interspersed with regular command form for""" start="00:20:51.280" video="mainVideo-shell" id="subtitle"]]
+[[!template text="""additional scripting power. We will discuss this a little""" start="00:20:55.080" video="mainVideo-shell" id="subtitle"]]
+[[!template text="""more later.""" start="00:20:58.760" video="mainVideo-shell" id="subtitle"]]
+
+[[!template new="1" text="""File system management""" start="00:21:11.780" video="mainVideo-shell" id="subtitle"]]
+
+[[!template text="""Regarding file system management. In Emacs, many of the""" start="00:21:11.780" video="mainVideo-shell" id="subtitle"]]
+[[!template text="""common file system operations are available as""" start="00:21:16.760" video="mainVideo-shell" id="subtitle"]]
+[[!template text="""interactive commands. For example, M-x cd, to change your""" start="00:21:20.240" video="mainVideo-shell" id="subtitle"]]
+[[!template text="""buffer's current working directory, and other M-x commands""" start="00:21:26.760" video="mainVideo-shell" id="subtitle"]]
+[[!template text="""such as make-directory""" start="00:21:32.840" video="mainVideo-shell" id="subtitle"]]
+[[!template text="""chmod,""" start="00:21:40.780" video="mainVideo-shell" id="subtitle"]]
+[[!template text="""and delete-file. Of course, you can also drop into Eshell,""" start="00:21:43.260" video="mainVideo-shell" id="subtitle"]]
+[[!template text="""or use M-x eshell-command to run the usual external commands""" start="00:21:53.840" video="mainVideo-shell" id="subtitle"]]
+[[!template text="""for file system manipulation. Also, a file manager is built""" start="00:22:00.640" video="mainVideo-shell" id="subtitle"]]
+[[!template text="""into Emacs, which can be run by calling M-x dired.""" start="00:22:07.040" video="mainVideo-shell" id="subtitle"]]
+[[!template text="""The directory editor is powerful, but it is a bit strange to""" start="00:22:19.640" video="mainVideo-shell" id="subtitle"]]
+[[!template text="""folks expecting something like Midnight Commander or the""" start="00:22:24.560" video="mainVideo-shell" id="subtitle"]]
+[[!template text="""GNOME file manager. It gives us a number of helpful features""" start="00:22:28.680" video="mainVideo-shell" id="subtitle"]]
+[[!template text="""like the ability to mark files, and to run elisp functions on""" start="00:22:35.640" video="mainVideo-shell" id="subtitle"]]
+[[!template text="""them, and some other interesting ways to manipulate and""" start="00:22:44.700" video="mainVideo-shell" id="subtitle"]]
+[[!template text="""rename the files. However, third-party Emacs extensions""" start="00:22:48.440" video="mainVideo-shell" id="subtitle"]]
+[[!template text="""such as Midnight Commander Mode and Sunrise Commander are""" start="00:22:54.080" video="mainVideo-shell" id="subtitle"]]
+[[!template text="""available to provide a Midnight Commander experience, for those who""" start="00:22:58.480" video="mainVideo-shell" id="subtitle"]]
+[[!template text="""prefer that sort of file management.""" start="00:23:03.880" video="mainVideo-shell" id="subtitle"]]
+[[!template text="""Emacs also has the nifty TRAMP functionality built in,""" start="00:23:10.320" video="mainVideo-shell" id="subtitle"]]
+[[!template text="""which allows you, most of the time, to easily edit files on""" start="00:23:14.880" video="mainVideo-shell" id="subtitle"]]
+[[!template text="""other computers, as well as manipulate the file system.""" start="00:23:19.160" video="mainVideo-shell" id="subtitle"]]
+[[!template text="""This transparently works through SSH and some other""" start="00:23:23.180" video="mainVideo-shell" id="subtitle"]]
+[[!template text="""protocols that you can specify.""" start="00:23:27.840" video="mainVideo-shell" id="subtitle"]]
+
+[[!template new="1" text="""Networking""" start="00:23:43.560" video="mainVideo-shell" id="subtitle"]]
+
+[[!template text="""Regarding networking features, I don't have a lot of""" start="00:23:43.560" video="mainVideo-shell" id="subtitle"]]
+[[!template text="""interesting things to say about this at the present, so I'll""" start="00:23:48.160" video="mainVideo-shell" id="subtitle"]]
+[[!template text="""skip through this quickly. But if you do a little research,""" start="00:23:51.640" video="mainVideo-shell" id="subtitle"]]
+[[!template text="""you will see that Emacs has a lot of functionality relating""" start="00:23:54.920" video="mainVideo-shell" id="subtitle"]]
+[[!template text="""to making network connections, interacting with the web,""" start="00:23:58.800" video="mainVideo-shell" id="subtitle"]]
+[[!template text="""and such like, both built-in and in available packages, as""" start="00:24:02.780" video="mainVideo-shell" id="subtitle"]]
+[[!template text="""well as modes for doing things like Web browsing and Gemini""" start="00:24:07.860" video="mainVideo-shell" id="subtitle"]]
+[[!template text="""browsing. And of course, you can run the usual standard""" start="00:24:14.400" video="mainVideo-shell" id="subtitle"]]
+[[!template text="""networking commands for your system through Eshell.""" start="00:24:20.600" video="mainVideo-shell" id="subtitle"]]
+
+[[!template new="1" text="""A brief tour of Eshell""" start="00:24:30.120" video="mainVideo-shell" id="subtitle"]]
+
+[[!template text="""So having put forward the main arguments for this talk, I""" start="00:24:30.120" video="mainVideo-shell" id="subtitle"]]
+[[!template text="""would like to take some time now to give a brief tour of a few of""" start="00:24:33.760" video="mainVideo-shell" id="subtitle"]]
+[[!template text="""the features of Eshell, the Emacs shell. It bears""" start="00:24:38.200" video="mainVideo-shell" id="subtitle"]]
+[[!template text="""emphasizing that Eshell is not a drop-in replacement for""" start="00:24:43.800" video="mainVideo-shell" id="subtitle"]]
+[[!template text="""Bash, or even a Bash clone, though I believe the developers""" start="00:24:47.000" video="mainVideo-shell" id="subtitle"]]
+[[!template text="""are trying to make much of the syntax very similar. Also,""" start="00:24:51.880" video="mainVideo-shell" id="subtitle"]]
+[[!template text="""Eshell is not a terminal emulator, and it will not display""" start="00:24:56.840" video="mainVideo-shell" id="subtitle"]]
+[[!template text="""correctly applications which use advanced ANSI control""" start="00:25:00.480" video="mainVideo-shell" id="subtitle"]]
+[[!template text="""codes. However, Eshell can be configured to be aware of such""" start="00:25:04.680" video="mainVideo-shell" id="subtitle"]]
+[[!template text="""applications, and to run them automatically within the""" start="00:25:10.120" video="mainVideo-shell" id="subtitle"]]
+[[!template text="""Emacs terminal emulator when launched. See section 5.1 of""" start="00:25:13.301" video="mainVideo-shell" id="subtitle"]]
+[[!template text="""the Eshell manual titled Visual Commands.""" start="00:25:19.941" video="mainVideo-shell" id="subtitle"]]
+[[!template text="""Though Eshell is not Bash, it has multiple features,""" start="00:25:32.540" video="mainVideo-shell" id="subtitle"]]
+[[!template text="""pertaining mainly to its by-design Emacs integration,""" start="00:25:36.760" video="mainVideo-shell" id="subtitle"]]
+[[!template text="""which may make it more appealing to use than Bash or another""" start="00:25:40.680" video="mainVideo-shell" id="subtitle"]]
+[[!template text="""shell.""" start="00:25:44.640" video="mainVideo-shell" id="subtitle"]]
+[[!template text="""For one, Eshell allows entering commands on the command""" start="00:25:48.160" video="mainVideo-shell" id="subtitle"]]
+[[!template text="""line that are space and new line separated, without""" start="00:25:52.040" video="mainVideo-shell" id="subtitle"]]
+[[!template text="""parentheses. Of course, all the other shells do this. But""" start="00:25:55.961" video="mainVideo-shell" id="subtitle"]]
+[[!template text="""within Eshell, it is possible to enter internal Emacs""" start="00:26:01.281" video="mainVideo-shell" id="subtitle"]]
+[[!template text="""functions, as well as external commands.""" start="00:26:06.281" video="mainVideo-shell" id="subtitle"]]
+[[!template text="""This allows us to do things like this.""" start="00:26:13.240" video="mainVideo-shell" id="subtitle"]]
+[[!template text="""As far as I understand, it is possible to enter any Emacs""" start="00:26:45.740" video="mainVideo-shell" id="subtitle"]]
+[[!template text="""function on the Eshell command line. However, some special""" start="00:26:49.760" video="mainVideo-shell" id="subtitle"]]
+[[!template text="""syntax may be required if you are trying to pass in something""" start="00:26:53.960" video="mainVideo-shell" id="subtitle"]]
+[[!template text="""that is not a string or a number.""" start="00:26:58.400" video="mainVideo-shell" id="subtitle"]]
+[[!template text="""As you might have noticed in the last example, Eshell makes""" start="00:27:04.380" video="mainVideo-shell" id="subtitle"]]
+[[!template text="""it possible to use an Emacs buffer as a sink for output. It""" start="00:27:07.920" video="mainVideo-shell" id="subtitle"]]
+[[!template text="""also allows using a buffer as a source of input, though this""" start="00:27:12.920" video="mainVideo-shell" id="subtitle"]]
+[[!template text="""is slightly more complicated, since the buffer must be""" start="00:27:18.040" video="mainVideo-shell" id="subtitle"]]
+[[!template text="""converted to a string first. I have distilled this down into""" start="00:27:21.840" video="mainVideo-shell" id="subtitle"]]
+[[!template text="""my own function, named with the &quot;at&quot; symbol.""" start="00:27:27.200" video="mainVideo-shell" id="subtitle"]]
+[[!template text="""And I will provide the brief snippet of code for this later.""" start="00:27:36.640" video="mainVideo-shell" id="subtitle"]]
+[[!template text="""So to give an example, here's our messages buffer.""" start="00:27:54.640" video="mainVideo-shell" id="subtitle"]]
+[[!template text="""And from Eshell, we can do something like this.""" start="00:28:02.500" video="mainVideo-shell" id="subtitle"]]
+[[!template text="""Let's say here we wanted to grab our messages buffer to see""" start="00:28:29.780" video="mainVideo-shell" id="subtitle"]]
+[[!template text="""everything that we had been loading during the startup""" start="00:28:34.440" video="mainVideo-shell" id="subtitle"]]
+[[!template text="""process.""" start="00:28:38.080" video="mainVideo-shell" id="subtitle"]]
+[[!template text="""So you can see how that could be very handy in a number of""" start="00:28:48.060" video="mainVideo-shell" id="subtitle"]]
+[[!template text="""scenarios.""" start="00:28:51.880" video="mainVideo-shell" id="subtitle"]]
+[[!template text="""I wanted to briefly mention that we have a helpful function""" start="00:28:55.060" video="mainVideo-shell" id="subtitle"]]
+[[!template text="""here called eshell-insert-buffer-name,""" start="00:29:00.240" video="mainVideo-shell" id="subtitle"]]
+[[!template text="""which allows us to insert a buffer name into the current""" start="00:29:11.120" video="mainVideo-shell" id="subtitle"]]
+[[!template text="""buffer at point using completion,""" start="00:29:15.360" video="mainVideo-shell" id="subtitle"]]
+[[!template text="""which can save you a lot of typing.""" start="00:29:24.680" video="mainVideo-shell" id="subtitle"]]
+[[!template text="""Another nice feature of Eshell""" start="00:29:32.880" video="mainVideo-shell" id="subtitle"]]
+[[!template text="""is that it allows integrating ELisp into the command line""" start="00:29:37.220" video="mainVideo-shell" id="subtitle"]]
+[[!template text="""call. Let's give another example. Say we wanted to echo the""" start="00:29:41.200" video="mainVideo-shell" id="subtitle"]]
+[[!template text="""date to an event file or an event log.""" start="00:29:48.880" video="mainVideo-shell" id="subtitle"]]
+[[!template text="""I should probably take a moment to explain this asterisk""" start="00:29:56.720" video="mainVideo-shell" id="subtitle"]]
+[[!template text="""that I'm occasionally using. So since Emacs, or excuse me,""" start="00:30:01.640" video="mainVideo-shell" id="subtitle"]]
+[[!template text="""since Eshell can use internal or external Emacs, excuse me,""" start="00:30:07.000" video="mainVideo-shell" id="subtitle"]]
+[[!template text="""internal Emacs commands or external commands, it may""" start="00:30:11.720" video="mainVideo-shell" id="subtitle"]]
+[[!template text="""sometimes be necessary to clarify which one you want to use,""" start="00:30:17.000" video="mainVideo-shell" id="subtitle"]]
+[[!template text="""since the names may overlap. Since my Eshell is configured""" start="00:30:22.380" video="mainVideo-shell" id="subtitle"]]
+[[!template text="""by default to prefer the internal Emacs functions, then""" start="00:30:27.080" video="mainVideo-shell" id="subtitle"]]
+[[!template text="""sometimes I have to use the asterisk to specify that I want""" start="00:30:32.320" video="mainVideo-shell" id="subtitle"]]
+[[!template text="""the external version.""" start="00:30:37.800" video="mainVideo-shell" id="subtitle"]]
+[[!template text="""Here I can insert a bit of Elisp,""" start="00:30:42.680" video="mainVideo-shell" id="subtitle"]]
+[[!template text="""and then redirect the output to the event log.""" start="00:31:03.180" video="mainVideo-shell" id="subtitle"]]
+[[!template text="""Last, I want to mention that there are some optional Eshell""" start="00:31:18.720" video="mainVideo-shell" id="subtitle"]]
+[[!template text="""modules in Emacs, not turned on by default, which provide""" start="00:31:22.640" video="mainVideo-shell" id="subtitle"]]
+[[!template text="""additional nifty features.""" start="00:31:27.160" video="mainVideo-shell" id="subtitle"]]
+[[!template text="""On my system, I have most of the optional modules turned on.""" start="00:31:40.540" video="mainVideo-shell" id="subtitle"]]
+[[!template text="""An interesting module is eshell-smart, which does various""" start="00:31:58.320" video="mainVideo-shell" id="subtitle"]]
+[[!template text="""things with cursor positioning and scrolling, so as to make""" start="00:32:03.200" video="mainVideo-shell" id="subtitle"]]
+[[!template text="""editing commands and reviewing output easier.""" start="00:32:07.320" video="mainVideo-shell" id="subtitle"]]
+[[!template text="""Let's say I was to change directory to my boot directory""" start="00:32:18.340" video="mainVideo-shell" id="subtitle"]]
+[[!template text="""and use a command which involves lots of output.""" start="00:32:30.880" video="mainVideo-shell" id="subtitle"]]
+[[!template text="""You'll notice right away that the cursor positioning is set""" start="00:32:39.900" video="mainVideo-shell" id="subtitle"]]
+[[!template text="""such that I'm immediately able to view the top of the output.""" start="00:32:44.360" video="mainVideo-shell" id="subtitle"]]
+[[!template text="""Also, I'm able to use the space bar to page through the""" start="00:32:48.720" video="mainVideo-shell" id="subtitle"]]
+[[!template text="""output.""" start="00:32:52.880" video="mainVideo-shell" id="subtitle"]]
+[[!template text="""So this is an opinionated feature, which assumes that""" start="00:32:56.080" video="mainVideo-shell" id="subtitle"]]
+[[!template text="""you're likely going to want to review the output""" start="00:33:01.920" video="mainVideo-shell" id="subtitle"]]
+[[!template text="""immediately, or that you often will. Of course, you can""" start="00:33:05.400" video="mainVideo-shell" id="subtitle"]]
+[[!template text="""always jump to the end.""" start="00:33:10.560" video="mainVideo-shell" id="subtitle"]]
+[[!template text="""Also, after a command is entered, the cursor is immediately""" start="00:33:19.980" video="mainVideo-shell" id="subtitle"]]
+[[!template text="""repositioned to make it easy to edit the command.""" start="00:33:23.920" video="mainVideo-shell" id="subtitle"]]
+[[!template text="""And also, if I don't want to edit the command, and I do not want""" start="00:33:53.020" video="mainVideo-shell" id="subtitle"]]
+[[!template text="""to review the output, I can simply start typing another""" start="00:33:56.520" video="mainVideo-shell" id="subtitle"]]
+[[!template text="""command.""" start="00:33:59.680" video="mainVideo-shell" id="subtitle"]]
+[[!template text="""So that covers the brief tour of Eshell features.""" start="00:34:11.260" video="mainVideo-shell" id="subtitle"]]
+[[!template text="""And that basically ends my talk.""" start="00:34:17.760" video="mainVideo-shell" id="subtitle"]]
+
+[[!template new="1" text="""Login shell""" start="00:34:21.128" video="mainVideo-shell" id="subtitle"]]
+
+[[!template text="""However, a handful of""" start="00:34:21.128" video="mainVideo-shell" id="subtitle"]]
+[[!template text="""viewers might be wondering, is it possible to set Emacs to be""" start="00:34:22.381" video="mainVideo-shell" id="subtitle"]]
+[[!template text="""my login shell to completely replace bash in your login""" start="00:34:28.720" video="mainVideo-shell" id="subtitle"]]
+[[!template text="""experience? The answer is yes, but in practice there are""" start="00:34:37.640" video="mainVideo-shell" id="subtitle"]]
+[[!template text="""various difficulties involved which might make it not""" start="00:34:43.720" video="mainVideo-shell" id="subtitle"]]
+[[!template text="""worth the trouble.""" start="00:34:47.400" video="mainVideo-shell" id="subtitle"]]
+[[!template text="""Before doing this, you'll have to answer a few initial""" start="00:35:00.440" video="mainVideo-shell" id="subtitle"]]
+[[!template text="""questions. Do you want to make a new Emacs instance every""" start="00:35:03.480" video="mainVideo-shell" id="subtitle"]]
+[[!template text="""time you log in, or do you want it to connect to an Emacs""" start="00:35:09.520" video="mainVideo-shell" id="subtitle"]]
+[[!template text="""server? Which is popular among Emacs users, to reuse the""" start="00:35:13.760" video="mainVideo-shell" id="subtitle"]]
+[[!template text="""session, or to connect to the existing session. Also, do you""" start="00:35:20.600" video="mainVideo-shell" id="subtitle"]]
+[[!template text="""want a different result, whether in graphical or a terminal""" start="00:35:26.600" video="mainVideo-shell" id="subtitle"]]
+[[!template text="""environment? And are you okay with your initialization""" start="00:35:30.640" video="mainVideo-shell" id="subtitle"]]
+[[!template text="""file being run every time you log in, including every new tab""" start="00:35:34.680" video="mainVideo-shell" id="subtitle"]]
+[[!template text="""you open in a terminal emulator? If we assume that you are""" start="00:35:39.560" video="mainVideo-shell" id="subtitle"]]
+[[!template text="""using a system with /etc/passwd user management, you get""" start="00:35:44.521" video="mainVideo-shell" id="subtitle"]]
+[[!template text="""one field to specify the name of the shell program that you""" start="00:35:50.340" video="mainVideo-shell" id="subtitle"]]
+[[!template text="""want to use, and no arguments are allowed. So maybe you can""" start="00:35:54.000" video="mainVideo-shell" id="subtitle"]]
+[[!template text="""see how this might be challenging, depending on your""" start="00:35:58.480" video="mainVideo-shell" id="subtitle"]]
+[[!template text="""answers to the previous questions. You can work around""" start="00:36:02.680" video="mainVideo-shell" id="subtitle"]]
+[[!template text="""these issues in various ways, like modifying the""" start="00:36:06.880" video="mainVideo-shell" id="subtitle"]]
+[[!template text="""authentication system, or by specifying a script for your""" start="00:36:10.480" video="mainVideo-shell" id="subtitle"]]
+[[!template text="""login shell. But if your normal workflow is to simply log in""" start="00:36:15.440" video="mainVideo-shell" id="subtitle"]]
+[[!template text="""and start Emacs and run that Emacs session until your next""" start="00:36:21.800" video="mainVideo-shell" id="subtitle"]]
+[[!template text="""reboot, then it probably isn't worth the bother.""" start="00:36:25.680" video="mainVideo-shell" id="subtitle"]]
+
+[[!template new="1" text="""Resources""" start="00:36:36.980" video="mainVideo-shell" id="subtitle"]]
+
+[[!template text="""So thank you for listening to my talk, Emacs as a Shell, by""" start="00:36:36.980" video="mainVideo-shell" id="subtitle"]]
+[[!template text="""Christopher Howard for Emacs Conference 2024.""" start="00:36:42.000" video="mainVideo-shell" id="subtitle"]]
+[[!template text="""At the bottom of this page, you can see a link to the""" start="00:36:46.860" video="mainVideo-shell" id="subtitle"]]
+[[!template text="""repository containing the brief amount of code that was""" start="00:36:51.520" video="mainVideo-shell" id="subtitle"]]
+[[!template text="""featured here in this video, as well as a link to my personal""" start="00:36:56.920" video="mainVideo-shell" id="subtitle"]]
+[[!template text="""Gemini gemlog, as well as to a Web portal version of that.""" start="00:37:03.680" video="mainVideo-shell" id="subtitle"]]
+[[!template text="""Thank you.""" start="00:37:10.280" video="mainVideo-shell" id="subtitle"]]
+
+
+
+Captioner: mark
+
Questions or comments? Please e-mail [christopher@librehacker.com](mailto:christopher@librehacker.com?subject=Comment%20for%20EmacsConf%202023%20shell%3A%20Emacs%20as%20a%20shell)
diff --git a/2024/info/shell-before.md b/2024/info/shell-before.md
index aada5dc3..ef4d4f02 100644
--- a/2024/info/shell-before.md
+++ b/2024/info/shell-before.md
@@ -1,19 +1,35 @@
<!-- Automatically generated by emacsconf-publish-before-page -->
The following image shows where the talk is in the schedule for Sat 2024-12-07. Solid lines show talks with Q&A via BigBlueButton. Dashed lines show talks with Q&A via IRC or Etherpad.<div class="schedule-in-context schedule-svg-container" data-slug="shell">
-<svg width="700" height="150" version="1.1" xmlns="http://www.w3.org/2000/svg" xmlns:xlink="http://www.w3.org/1999/xlink"> <title> Schedule for Saturday</title> <rect width="700" height="150" x="0" y="0" fill="white"></rect> <text font-size="10" fill="black" y="12" x="3"> Saturday</text> <a href="/2024/talks/sat-open" title="Saturday opening remarks" data-slug="sat-open"> <title> 9:00- 9:10 Saturday opening remarks</title> <rect x="0" y="15" opacity="0.5" width="13" height="59" stroke="black" stroke-dasharray="5,5,5" fill="peachpuff"></rect> <g transform="translate(11,73)"> <text fill="black" x="0" y="0" font-size="10" transform="rotate(-90)"> sat-open</text></g></a> <a href="/2024/talks/papers" title="Writing academic papers in Org-Roam" data-slug="papers"> <title> 9:10- 9:20 Writing academic papers in Org-Roam</title> <rect x="13" y="15" opacity="0.5" width="13" height="59" stroke="black" stroke-dasharray="" fill="peachpuff"></rect> <g transform="translate(24,73)"> <text fill="black" x="0" y="0" font-size="10" transform="rotate(-90)"> papers</text></g></a> <a href="/2024/talks/project" title="Managing writing project metadata with org-mode" data-slug="project"> <title> 9:40-10:00 Managing writing project metadata with org-mode</title> <rect x="54" y="15" opacity="0.5" width="27" height="59" stroke="black" stroke-dasharray="" fill="peachpuff"></rect> <g transform="translate(79,73)"> <text fill="black" x="0" y="0" font-size="10" transform="rotate(-90)"> project</text></g></a> <a href="/2024/talks/org-update" title="The Future of Org" data-slug="org-update"> <title> 10:20-11:00 The Future of Org</title> <rect x="109" y="15" opacity="0.5" width="54" height="59" stroke="black" stroke-dasharray="" fill="peachpuff"></rect> <g transform="translate(161,73)"> <text fill="black" x="0" y="0" font-size="10" transform="rotate(-90)"> org-update</text></g></a> <a href="/2024/talks/color" title="Colour your Emacs with ease" data-slug="color"> <title> 11:20-11:30 Colour your Emacs with ease</title> <rect x="192" y="15" opacity="0.5" width="13" height="59" stroke="black" stroke-dasharray="" fill="peachpuff"></rect> <g transform="translate(203,73)"> <text fill="black" x="0" y="0" font-size="10" transform="rotate(-90)"> color</text></g></a> <a href="/2024/talks/theme" title="My journey of finding and creating the “perfect” Emacs theme" data-slug="theme"> <title> 1:00- 1:10 My journey of finding and creating the “perfect” Emacs theme</title> <rect x="329" y="15" opacity="0.5" width="13" height="59" stroke="black" stroke-dasharray="" fill="peachpuff"></rect> <g transform="translate(340,73)"> <text fill="black" x="0" y="0" font-size="10" transform="rotate(-90)"> theme</text></g></a> <a href="/2024/talks/water" title="Watering my (digital) plant with Emacs timers" data-slug="water"> <title> 1:30- 1:45 Watering my (digital) plant with Emacs timers</title> <rect x="370" y="15" opacity="0.5" width="20" height="59" stroke="black" stroke-dasharray="5,5,5" fill="peachpuff"></rect> <g transform="translate(388,73)"> <text fill="black" x="0" y="0" font-size="10" transform="rotate(-90)"> water</text></g></a> <a href="/2024/talks/shell" title="Emacs as a shell" data-slug="shell"> <title> 1:55- 2:35 Emacs as a shell</title> <rect stroke-width="3" x="404" y="15" opacity="0.8" width="54" height="59" stroke="black" stroke-dasharray="5,5,5" fill="peachpuff"></rect> <g transform="translate(456,73)"> <text font-weight="bold" fill="black" x="0" y="0" font-size="10" transform="rotate(-90)"> shell</text></g></a> <a href="/2024/talks/casual" title="Re-imagining the Emacs user experience with Casual Suite" data-slug="casual"> <title> 2:45- 3:05 Re-imagining the Emacs user experience with Casual Suite</title> <rect x="473" y="15" opacity="0.5" width="27" height="59" stroke="black" stroke-dasharray="" fill="peachpuff"></rect> <g transform="translate(498,73)"> <text fill="black" x="0" y="0" font-size="10" transform="rotate(-90)"> casual</text></g></a> <a href="/2024/talks/hyperdrive" title="New in hyperdrive.el: quick install, peer graph, transclusion!" data-slug="hyperdrive"> <title> 3:25- 3:45 New in hyperdrive.el: quick install, peer graph, transclusion!</title> <rect x="528" y="15" opacity="0.5" width="27" height="59" stroke="black" stroke-dasharray="" fill="peachpuff"></rect> <g transform="translate(553,73)"> <text fill="black" x="0" y="0" font-size="10" transform="rotate(-90)"> hyperdrive</text></g></a> <a href="/2024/talks/writing" title="Emacs Writing Studio" data-slug="writing"> <title> 4:05- 4:15 Emacs Writing Studio</title> <rect x="583" y="15" opacity="0.5" width="13" height="59" stroke="black" stroke-dasharray="" fill="peachpuff"></rect> <g transform="translate(594,73)"> <text fill="black" x="0" y="0" font-size="10" transform="rotate(-90)"> writing</text></g></a> <a href="/2024/talks/emacs30" title="Emacs 30 Highlights" data-slug="emacs30"> <title> 4:25- 4:50 Emacs 30 Highlights</title> <rect x="610" y="15" opacity="0.5" width="34" height="59" stroke="black" stroke-dasharray="" fill="peachpuff"></rect> <g transform="translate(642,73)"> <text fill="black" x="0" y="0" font-size="10" transform="rotate(-90)"> emacs30</text></g></a> <a href="/2024/talks/sat-close" title="Saturday closing remarks" data-slug="sat-close"> <title> 5:00- 5:10 Saturday closing remarks</title> <rect x="658" y="15" opacity="0.5" width="13" height="59" stroke="black" stroke-dasharray="5,5,5" fill="peachpuff"></rect> <g transform="translate(669,73)"> <text fill="black" x="0" y="0" font-size="10" transform="rotate(-90)"> sat-close</text></g></a> <a href="/2024/talks/gypsum" title="Gypsum: my clone of Emacs and ELisp written in Scheme" data-slug="gypsum"> <title> 10:00-10:20 Gypsum: my clone of Emacs and ELisp written in Scheme</title> <rect x="82" y="75" opacity="0.5" width="27" height="59" stroke="black" stroke-dasharray="" fill="skyblue"></rect> <g transform="translate(107,133)"> <text fill="black" x="0" y="0" font-size="10" transform="rotate(-90)"> gypsum</text></g></a> <a href="/2024/talks/rust" title="An experimental Emacs core in Rust" data-slug="rust"> <title> 10:40-11:00 An experimental Emacs core in Rust</title> <rect x="137" y="75" opacity="0.5" width="27" height="59" stroke="black" stroke-dasharray="" fill="skyblue"></rect> <g transform="translate(162,133)"> <text fill="black" x="0" y="0" font-size="10" transform="rotate(-90)"> rust</text></g></a> <a href="/2024/talks/p-search" title="p-search: a local search engine in Emacs" data-slug="p-search"> <title> 11:20-11:45 p-search: a local search engine in Emacs</title> <rect x="192" y="75" opacity="0.5" width="34" height="59" stroke="black" stroke-dasharray="" fill="skyblue"></rect> <g transform="translate(224,133)"> <text fill="black" x="0" y="0" font-size="10" transform="rotate(-90)"> p-search</text></g></a> <a href="/2024/talks/julia" title="Exploring shared philosophies in Julia and Emacs" data-slug="julia"> <title> 1:00- 1:10 Exploring shared philosophies in Julia and Emacs</title> <rect x="329" y="75" opacity="0.5" width="13" height="59" stroke="black" stroke-dasharray="" fill="skyblue"></rect> <g transform="translate(340,133)"> <text fill="black" x="0" y="0" font-size="10" transform="rotate(-90)"> julia</text></g></a> <a href="/2024/talks/guile" title="Beguiling Emacs: Guile-Emacs relaunched!" data-slug="guile"> <title> 1:25- 1:45 Beguiling Emacs: Guile-Emacs relaunched!</title> <rect x="363" y="75" opacity="0.5" width="27" height="59" stroke="black" stroke-dasharray="" fill="skyblue"></rect> <g transform="translate(388,133)"> <text fill="black" x="0" y="0" font-size="10" transform="rotate(-90)"> guile</text></g></a> <a href="/2024/talks/secrets" title="Committing secrets with git using sops-mode" data-slug="secrets"> <title> 1:55- 2:05 Committing secrets with git using sops-mode</title> <rect x="404" y="75" opacity="0.5" width="13" height="59" stroke="black" stroke-dasharray="" fill="skyblue"></rect> <g transform="translate(415,133)"> <text fill="black" x="0" y="0" font-size="10" transform="rotate(-90)"> secrets</text></g></a> <a href="/2024/talks/mcclim" title="Elisp and McCLIM" data-slug="mcclim"> <title> 2:25- 3:25 Elisp and McCLIM</title> <rect x="446" y="75" opacity="0.5" width="82" height="59" stroke="black" stroke-dasharray="" fill="skyblue"></rect> <g transform="translate(526,133)"> <text fill="black" x="0" y="0" font-size="10" transform="rotate(-90)"> mcclim</text></g></a> <a href="/2024/talks/maxima" title="Emacs, eev, and Maxima - now!" data-slug="maxima"> <title> 3:45- 4:05 Emacs, eev, and Maxima - now!</title> <rect x="555" y="75" opacity="0.5" width="27" height="59" stroke="black" stroke-dasharray="5,5,5" fill="skyblue"></rect> <g transform="translate(580,133)"> <text fill="black" x="0" y="0" font-size="10" transform="rotate(-90)"> maxima</text></g></a> <g transform="translate(0,15)"> <line stroke="darkgray" x1="0" y1="0" x2="0" y2="120"></line> <text fill="black" x="0" y="133" font-size="10" text-anchor="left"> 9 AM</text></g> <g transform="translate(82,15)"> <line stroke="darkgray" x1="0" y1="0" x2="0" y2="120"></line> <text fill="black" x="0" y="133" font-size="10" text-anchor="left"> 10 AM</text></g> <g transform="translate(164,15)"> <line stroke="darkgray" x1="0" y1="0" x2="0" y2="120"></line> <text fill="black" x="0" y="133" font-size="10" text-anchor="left"> 11 AM</text></g> <g transform="translate(247,15)"> <line stroke="darkgray" x1="0" y1="0" x2="0" y2="120"></line> <text fill="black" x="0" y="133" font-size="10" text-anchor="left"> 12 PM</text></g> <g transform="translate(329,15)"> <line stroke="darkgray" x1="0" y1="0" x2="0" y2="120"></line> <text fill="black" x="0" y="133" font-size="10" text-anchor="left"> 1 PM</text></g> <g transform="translate(411,15)"> <line stroke="darkgray" x1="0" y1="0" x2="0" y2="120"></line> <text fill="black" x="0" y="133" font-size="10" text-anchor="left"> 2 PM</text></g> <g transform="translate(494,15)"> <line stroke="darkgray" x1="0" y1="0" x2="0" y2="120"></line> <text fill="black" x="0" y="133" font-size="10" text-anchor="left"> 3 PM</text></g> <g transform="translate(576,15)"> <line stroke="darkgray" x1="0" y1="0" x2="0" y2="120"></line> <text fill="black" x="0" y="133" font-size="10" text-anchor="left"> 4 PM</text></g> <g transform="translate(658,15)"> <line stroke="darkgray" x1="0" y1="0" x2="0" y2="120"></line> <text fill="black" x="0" y="133" font-size="10" text-anchor="left"> 5 PM</text></g></svg>
+<svg width="700" height="150" version="1.1" xmlns="http://www.w3.org/2000/svg" xmlns:xlink="http://www.w3.org/1999/xlink"> <title> Schedule for Saturday</title> <rect width="700" height="150" x="0" y="0" fill="white"></rect> <text font-size="10" fill="black" y="12" x="3"> Saturday</text> <a href="/2024/talks/sat-open" title="Saturday opening remarks" data-slug="sat-open"> <title> 9:00- 9:10 Saturday opening remarks</title> <rect x="0" y="15" opacity="0.5" width="13" height="59" stroke="black" stroke-dasharray="5,5,5" fill="peachpuff"></rect> <g transform="translate(11,73)"> <text fill="black" x="0" y="0" font-size="10" transform="rotate(-90)"> sat-open</text></g></a> <a href="/2024/talks/papers" title="Writing academic papers in Org-Roam" data-slug="papers"> <title> 9:10- 9:20 Writing academic papers in Org-Roam</title> <rect x="13" y="15" opacity="0.5" width="13" height="59" stroke="black" stroke-dasharray="" fill="peachpuff"></rect> <g transform="translate(24,73)"> <text fill="black" x="0" y="0" font-size="10" transform="rotate(-90)"> papers</text></g></a> <a href="/2024/talks/project" title="Managing writing project metadata with org-mode" data-slug="project"> <title> 9:40-10:00 Managing writing project metadata with org-mode</title> <rect x="54" y="15" opacity="0.5" width="27" height="59" stroke="black" stroke-dasharray="" fill="peachpuff"></rect> <g transform="translate(79,73)"> <text fill="black" x="0" y="0" font-size="10" transform="rotate(-90)"> project</text></g></a> <a href="/2024/talks/org-update" title="The Future of Org" data-slug="org-update"> <title> 10:20-11:00 The Future of Org</title> <rect x="109" y="15" opacity="0.5" width="54" height="59" stroke="black" stroke-dasharray="" fill="peachpuff"></rect> <g transform="translate(161,73)"> <text fill="black" x="0" y="0" font-size="10" transform="rotate(-90)"> org-update</text></g></a> <a href="/2024/talks/color" title="Colour your Emacs with ease" data-slug="color"> <title> 11:20-11:30 Colour your Emacs with ease</title> <rect x="192" y="15" opacity="0.5" width="13" height="59" stroke="black" stroke-dasharray="" fill="peachpuff"></rect> <g transform="translate(203,73)"> <text fill="black" x="0" y="0" font-size="10" transform="rotate(-90)"> color</text></g></a> <a href="/2024/talks/theme" title="My journey of finding and creating the “perfect” Emacs theme" data-slug="theme"> <title> 1:00- 1:10 My journey of finding and creating the “perfect” Emacs theme</title> <rect x="329" y="15" opacity="0.5" width="13" height="59" stroke="black" stroke-dasharray="5,5,5" fill="peachpuff"></rect> <g transform="translate(340,73)"> <text fill="black" x="0" y="0" font-size="10" transform="rotate(-90)"> theme</text></g></a> <a href="/2024/talks/water" title="Watering my (digital) plant with Emacs timers" data-slug="water"> <title> 1:30- 1:45 Watering my (digital) plant with Emacs timers</title> <rect x="370" y="15" opacity="0.5" width="20" height="59" stroke="black" stroke-dasharray="5,5,5" fill="peachpuff"></rect> <g transform="translate(388,73)"> <text fill="black" x="0" y="0" font-size="10" transform="rotate(-90)"> water</text></g></a> <a href="/2024/talks/shell" title="Emacs as a shell" data-slug="shell"> <title> 1:55- 2:35 Emacs as a shell</title> <rect stroke-width="3" x="404" y="15" opacity="0.8" width="54" height="59" stroke="black" stroke-dasharray="5,5,5" fill="peachpuff"></rect> <g transform="translate(456,73)"> <text font-weight="bold" fill="black" x="0" y="0" font-size="10" transform="rotate(-90)"> shell</text></g></a> <a href="/2024/talks/casual" title="Re-imagining the Emacs user experience with Casual Suite" data-slug="casual"> <title> 2:45- 3:05 Re-imagining the Emacs user experience with Casual Suite</title> <rect x="473" y="15" opacity="0.5" width="27" height="59" stroke="black" stroke-dasharray="" fill="peachpuff"></rect> <g transform="translate(498,73)"> <text fill="black" x="0" y="0" font-size="10" transform="rotate(-90)"> casual</text></g></a> <a href="/2024/talks/hyperdrive" title="New in hyperdrive.el: quick install, peer graph, transclusion!" data-slug="hyperdrive"> <title> 3:25- 3:45 New in hyperdrive.el: quick install, peer graph, transclusion!</title> <rect x="528" y="15" opacity="0.5" width="27" height="59" stroke="black" stroke-dasharray="5,5,5" fill="peachpuff"></rect> <g transform="translate(553,73)"> <text fill="black" x="0" y="0" font-size="10" transform="rotate(-90)"> hyperdrive</text></g></a> <a href="/2024/talks/writing" title="Emacs Writing Studio" data-slug="writing"> <title> 4:05- 4:15 Emacs Writing Studio</title> <rect x="583" y="15" opacity="0.5" width="13" height="59" stroke="black" stroke-dasharray="" fill="peachpuff"></rect> <g transform="translate(594,73)"> <text fill="black" x="0" y="0" font-size="10" transform="rotate(-90)"> writing</text></g></a> <a href="/2024/talks/emacs30" title="Emacs 30 Highlights" data-slug="emacs30"> <title> 4:25- 4:50 Emacs 30 Highlights</title> <rect x="610" y="15" opacity="0.5" width="34" height="59" stroke="black" stroke-dasharray="" fill="peachpuff"></rect> <g transform="translate(642,73)"> <text fill="black" x="0" y="0" font-size="10" transform="rotate(-90)"> emacs30</text></g></a> <a href="/2024/talks/sat-close" title="Saturday closing remarks" data-slug="sat-close"> <title> 5:00- 5:10 Saturday closing remarks</title> <rect x="658" y="15" opacity="0.5" width="13" height="59" stroke="black" stroke-dasharray="5,5,5" fill="peachpuff"></rect> <g transform="translate(669,73)"> <text fill="black" x="0" y="0" font-size="10" transform="rotate(-90)"> sat-close</text></g></a> <a href="/2024/talks/gypsum" title="Gypsum: my clone of Emacs and ELisp written in Scheme" data-slug="gypsum"> <title> 10:00-10:20 Gypsum: my clone of Emacs and ELisp written in Scheme</title> <rect x="82" y="75" opacity="0.5" width="27" height="59" stroke="black" stroke-dasharray="" fill="skyblue"></rect> <g transform="translate(107,133)"> <text fill="black" x="0" y="0" font-size="10" transform="rotate(-90)"> gypsum</text></g></a> <a href="/2024/talks/rust" title="An experimental Emacs core in Rust" data-slug="rust"> <title> 10:40-11:00 An experimental Emacs core in Rust</title> <rect x="137" y="75" opacity="0.5" width="27" height="59" stroke="black" stroke-dasharray="5,5,5" fill="skyblue"></rect> <g transform="translate(162,133)"> <text fill="black" x="0" y="0" font-size="10" transform="rotate(-90)"> rust</text></g></a> <a href="/2024/talks/p-search" title="p-search: a local search engine in Emacs" data-slug="p-search"> <title> 11:20-11:45 p-search: a local search engine in Emacs</title> <rect x="192" y="75" opacity="0.5" width="34" height="59" stroke="black" stroke-dasharray="" fill="skyblue"></rect> <g transform="translate(224,133)"> <text fill="black" x="0" y="0" font-size="10" transform="rotate(-90)"> p-search</text></g></a> <a href="/2024/talks/julia" title="Exploring shared philosophies in Julia and Emacs" data-slug="julia"> <title> 1:00- 1:10 Exploring shared philosophies in Julia and Emacs</title> <rect x="329" y="75" opacity="0.5" width="13" height="59" stroke="black" stroke-dasharray="" fill="skyblue"></rect> <g transform="translate(340,133)"> <text fill="black" x="0" y="0" font-size="10" transform="rotate(-90)"> julia</text></g></a> <a href="/2024/talks/guile" title="Beguiling Emacs: Guile-Emacs relaunched!" data-slug="guile"> <title> 1:25- 1:45 Beguiling Emacs: Guile-Emacs relaunched!</title> <rect x="363" y="75" opacity="0.5" width="27" height="59" stroke="black" stroke-dasharray="" fill="skyblue"></rect> <g transform="translate(388,133)"> <text fill="black" x="0" y="0" font-size="10" transform="rotate(-90)"> guile</text></g></a> <a href="/2024/talks/secrets" title="Committing secrets with git using sops-mode" data-slug="secrets"> <title> 1:55- 2:05 Committing secrets with git using sops-mode</title> <rect x="404" y="75" opacity="0.5" width="13" height="59" stroke="black" stroke-dasharray="" fill="skyblue"></rect> <g transform="translate(415,133)"> <text fill="black" x="0" y="0" font-size="10" transform="rotate(-90)"> secrets</text></g></a> <a href="/2024/talks/mcclim" title="Elisp and McCLIM" data-slug="mcclim"> <title> 2:25- 3:25 Elisp and McCLIM</title> <rect x="446" y="75" opacity="0.5" width="82" height="59" stroke="black" stroke-dasharray="" fill="skyblue"></rect> <g transform="translate(526,133)"> <text fill="black" x="0" y="0" font-size="10" transform="rotate(-90)"> mcclim</text></g></a> <a href="/2024/talks/maxima" title="Emacs, eev, and Maxima - now!" data-slug="maxima"> <title> 3:45- 4:05 Emacs, eev, and Maxima - now!</title> <rect x="555" y="75" opacity="0.5" width="27" height="59" stroke="black" stroke-dasharray="5,5,5" fill="skyblue"></rect> <g transform="translate(580,133)"> <text fill="black" x="0" y="0" font-size="10" transform="rotate(-90)"> maxima</text></g></a> <g transform="translate(0,15)"> <line stroke="darkgray" x1="0" y1="0" x2="0" y2="120"></line> <text fill="black" x="0" y="133" font-size="10" text-anchor="left"> 9 AM</text></g> <g transform="translate(82,15)"> <line stroke="darkgray" x1="0" y1="0" x2="0" y2="120"></line> <text fill="black" x="0" y="133" font-size="10" text-anchor="left"> 10 AM</text></g> <g transform="translate(164,15)"> <line stroke="darkgray" x1="0" y1="0" x2="0" y2="120"></line> <text fill="black" x="0" y="133" font-size="10" text-anchor="left"> 11 AM</text></g> <g transform="translate(247,15)"> <line stroke="darkgray" x1="0" y1="0" x2="0" y2="120"></line> <text fill="black" x="0" y="133" font-size="10" text-anchor="left"> 12 PM</text></g> <g transform="translate(329,15)"> <line stroke="darkgray" x1="0" y1="0" x2="0" y2="120"></line> <text fill="black" x="0" y="133" font-size="10" text-anchor="left"> 1 PM</text></g> <g transform="translate(411,15)"> <line stroke="darkgray" x1="0" y1="0" x2="0" y2="120"></line> <text fill="black" x="0" y="133" font-size="10" text-anchor="left"> 2 PM</text></g> <g transform="translate(494,15)"> <line stroke="darkgray" x1="0" y1="0" x2="0" y2="120"></line> <text fill="black" x="0" y="133" font-size="10" text-anchor="left"> 3 PM</text></g> <g transform="translate(576,15)"> <line stroke="darkgray" x1="0" y1="0" x2="0" y2="120"></line> <text fill="black" x="0" y="133" font-size="10" text-anchor="left"> 4 PM</text></g> <g transform="translate(658,15)"> <line stroke="darkgray" x1="0" y1="0" x2="0" y2="120"></line> <text fill="black" x="0" y="133" font-size="10" text-anchor="left"> 5 PM</text></g></svg>
</div>
[[!toc ]]
Format: 38-min talk ; Q&A: IRC <https://chat.emacsconf.org/?join=emacsconf,emacsconf-gen> Etherpad: <https://pad.emacsconf.org/2024-shell>
Etherpad: <https://pad.emacsconf.org/2024-shell>
Discuss on IRC: [#emacsconf-gen](https://chat.emacsconf.org/?join=emacsconf,emacsconf-gen)
-Status: Ready to stream
+Status: Q&A open for participation
<div>Times in different time zones:</div><div class="times" start="2024-12-07T18:55:00Z" end="2024-12-07T19:35:00Z"><div class="conf-time">Saturday, Dec 7 2024, ~1:55 PM - 2:35 PM EST (US/Eastern)</div><div class="others"><div>which is the same as:</div>Saturday, Dec 7 2024, ~12:55 PM - 1:35 PM CST (US/Central)<br />Saturday, Dec 7 2024, ~11:55 AM - 12:35 PM MST (US/Mountain)<br />Saturday, Dec 7 2024, ~10:55 AM - 11:35 AM PST (US/Pacific)<br />Saturday, Dec 7 2024, ~6:55 PM - 7:35 PM UTC <br />Saturday, Dec 7 2024, ~7:55 PM - 8:35 PM CET (Europe/Paris)<br />Saturday, Dec 7 2024, ~8:55 PM - 9:35 PM EET (Europe/Athens)<br />Sunday, Dec 8 2024, ~12:25 AM - 1:05 AM IST (Asia/Kolkata)<br />Sunday, Dec 8 2024, ~2:55 AM - 3:35 AM +08 (Asia/Singapore)<br />Sunday, Dec 8 2024, ~3:55 AM - 4:35 AM JST (Asia/Tokyo)</div></div><div><strong><a href="/2024/watch/gen/">Find out how to watch and participate</a></strong></div>
+<div class="vid"><video controls preload="none" id="shell-mainVideo"><source src="https://media.emacsconf.org/2024/emacsconf-2024-shell--emacs-as-a-shell--christopher-howard--main.webm" />captions="""<track label="English" kind="captions" srclang="en" src="/2024/captions/emacsconf-2024-shell--emacs-as-a-shell--christopher-howard--main.vtt" default />"""<track kind="chapters" label="Chapters" src="/2024/captions/emacsconf-2024-shell--emacs-as-a-shell--christopher-howard--main--chapters.vtt" /><p><em>Your browser does not support the video tag. Please download the video instead.</em></p></video>[[!template id="chapters" vidid="shell-mainVideo" data="""
+00:02.940 Introduction
+00:37.881 What do I mean by shell?
+01:38.560 What I do not mean
+04:50.160 What is a shell?
+09:26.912 Launching external processes
+11:57.300 Environment variables
+14:54.400 Processes
+17:00.180 Redirecting and pipelining input and output
+20:09.440 Scripts
+21:11.780 File system management
+23:43.560 Networking
+24:30.120 A brief tour of Eshell
+34:21.128 Login shell
+36:36.980 Resources
+"""]]<div></div>Duration: 37:13 minutes<div class="files resources"><ul><li><a href="https://pad.emacsconf.org/2024-shell">Open Etherpad</a></li><li><a href="https://chat.emacsconf.org/?join=emacsconf,emacsconf-gen">Open public Q&A</a></li><li><a href="https://media.emacsconf.org/2024/emacsconf-2024-shell--emacs-as-a-shell--christopher-howard--intro.webm">Download --intro.webm</a></li><li><a href="https://media.emacsconf.org/2024/emacsconf-2024-shell--emacs-as-a-shell--christopher-howard--main--chapters.vtt">Download --main--chapters.vtt</a></li><li><a href="https://media.emacsconf.org/2024/emacsconf-2024-shell--emacs-as-a-shell--christopher-howard--main.vtt">Download --main.vtt</a></li><li><a href="https://media.emacsconf.org/2024/emacsconf-2024-shell--emacs-as-a-shell--christopher-howard--main.webm">Download --main.webm (87MB)</a></li></ul></div></div>
# Description
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