Questions tagged [shell-command]

is for executing shell commands from Emacs (the default key binding is `M-!`). Shell output is shown in the echo area if it fits, in buffer `*Shell Command Output*` otherwise. Emacs comes with many supporting facilities for executing shell commands, including interactive execution, selective execution on a region, history cycling, directory tracking, connecting to serial ports, emulator options, and specifying remote hosts.

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5
votes
1answer
781 views

Differences between cmdproxy.exe and cmd.exe

What is the difference between: (call-process "cmdproxy" nil "foo" nil "/c" "dir") (call-process "cmd" nil "foo" nil "/c" "dir") ? I seem to get exactly the same results in Emacs 25.1 on ...
1
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1answer
218 views

Calling shell-command from org-capture-templates to scrape verb conjugations

I want to use org-capture-templates to scrape french verb conjugations from the web and insert them into an org-file to use with org-drill. I have a (functioning) scraper that gets the desired data ...
0
votes
1answer
1k views

Saving to clipboard in a Python script running as shell command

The following python script successfully copies a given string into the clipboard when run from Ubuntu shell: import os text = 'The text to be copied to the clipboard.' os.system("echo -n {s} | xsel -...
1
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2answers
832 views

Run (async-)shell-command in view-mode

How do I run (async-)shell-command (but no other shell-mode buffers) in view-mode?
2
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2answers
282 views

Make shell-command / async-shell-command respect carriage return?

Say I have a simple perl program: for my $i (0..10) { print "$i\r" } print "\n" Now if I run the program through shell-command, instead of getting a single line with 10, I will see the ...
3
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1answer
86 views

Show top of *Async Shell Command* buffer

Is there a way to get to the top of a buffer that is not necessarily active? What I want to do is run a shell command on the word at point and then show the top of the output in the *Async Shell ...
1
vote
1answer
143 views

How to improve the `M-! command` output

I found this really cool in emacs M-! t t is ~/bin/t, and runs tests for whatever thing I'm working on. I added ~/bin/ to my /etc/path.d/, and I always use emacs -nw. My issue is, the command ...
5
votes
1answer
254 views

Asynchronous version of shell-command-on-region?

I have a problem which is very similar to this one. I have some text that I'd like to listen to with macOS's say utility. Unfortunately, Emacs locks up when I use shell-command-on-region because it is ...
1
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1answer
133 views

Execute shell command and then some text into document

I have a python script ss.py that gets a screenshot from a connected device and puts into particular dir. From terminal I run it with the target path as an arg: $ python ss.py {document-name}/{image-...
2
votes
1answer
70 views

is there a shell-command-at-point

This is a bit of a long shot, but I'm going to ask anyway. Kinda similar to what dired-at-point and find-file-at-point When point is inside a .txt file on a line like this ls -la /tmp/ When point ...
1
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1answer
373 views

Git bash opens in window outside of emacs

When running Emacs on Windows 10, I am able to launch git bash from within Emacs using the information given here, here, or here. For example, I can just add these two lines to my .emacs: (setq ...
4
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1answer
338 views

How to mix eshell and elisp code

If I'm in eshell I can run elisp commands cause I'm in an elisp runtime (mapcar (lambda (x) (* x 3)) (list 1 2 3)) (3 6 9) I can also run "shell" commands such as git status. But what if I wanted to ...
4
votes
1answer
224 views

How to make “shell-command-on-region” display output as a message on a non-zero exit code?

I'd like to replace my selection with the output of a program, an annoyance is - when there is an error, the error replaces my text. Is there a way to check the exit code and only replace the text if ...
0
votes
1answer
116 views

How to paste to another app from a shell script

I've been getting very vexed by the following. Goal: Take the clipboard contents and paste them into another application by using a shell script called by Emacs, followed by a Return. [This is for ...
1
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0answers
106 views

Problem execution scope org-babel in shell on windows 8

I just discovered that in order to run a sequence of shell commands under the same scope (same shell session) I have to add a hash at the end of the line. Example When I try to run the following ...
4
votes
1answer
215 views

Refresh `async-shell-command` buffer

When I run a command with async-shell-command, sometimes I would like to quickly rerun the command. I can do this by running async-shell-command again and using M-p to cycle backward through history, ...
1
vote
1answer
131 views

filter log output to Emacs buffer

I want to write a elisp script to filter a log command to output specific logs only. The log command will never exist till user press 'C-q'. The log output will be filtered by regex such as "test.*". ...
1
vote
1answer
430 views

Async shell command can't find command

I have installed the Rust programming language (Debian). Now i can compile and run programs from terminal (with the cargo build and cargo run commands), but not from inside emacs. The cargo compiler ...
2
votes
4answers
826 views

Command to Run (Eval) “Hello World” in ELISP on Eshell?

I am new to Emacs and ELISP A file (message "Hello World") saved as hello.el. Now, how to run (evaluate) this file on Eshell? ~/Documents $ ....... hello.el
13
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3answers
3k views

Persistent shell-command history

When I run shell-command in a new session I do not have access to the history of commands from the last session. How can I have that?
0
votes
1answer
624 views

C++ “std::cin >> ” is not pausing to read input from Emacs shell

The following program is from https://www.cs.bu.edu/teaching/tool/emacs/programming/ #include <iostream> int main() { int howmany; std::cout << "Enter a number: "; std::cin >&...
3
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2answers
864 views

Shell Command with bash script and arguements

I have a bash script which Sweaves .Rnw files into pdf's. sweave_to_pdf ~/Foo.Rnw I am wanting to write a emacs function to invoke this script on the current buffer. So far I have this: (defun ...
0
votes
1answer
271 views

Shell's “read” command in an elisp script

How can I get the shell's read command working (prompting for the input) in an elisp script? I have (shell-command "read -s-p \"Enter Password: \" PASSWORD") but it doesn't prompt anything.
2
votes
1answer
530 views

How to open system's command line at the directory of the current buffer?

Is there any easy way to open the system command line interface (e.g., cmd in Windows) at the directory containing the current buffer (if any)? Note that M-x shell open a command line interface within ...
7
votes
4answers
4k views

Get output of external command in the buffer

How do I get the output of (shell-command "df") (or some other more complex command, that I don't want to retype often) in the current buffer? I run it by typing C-c p after it, but then it opens ...
0
votes
1answer
333 views

How to use an external command to modify selected words and lines?

Something I've found useful in other editors is the ability to: take the selected text run an external command and pass the selection to its stdin take the external commands stdout and replace the ...
3
votes
0answers
299 views

Shutting down computer from emacs killing gracefully emacs itself

I am using EXWM on Arch as my windows manager. Substantially my startx launches exec dbus-launch --exit-with-session emacs so I am running only emacs and living inside it. I would like to define a ...
3
votes
1answer
1k views

How to run sudo commands using shell-command?

When I run any sudo command using shell-command—for example, (shell-command "sudo ls")—I get the following error: sudo: no tty present and no askpass program specified How can I get around this? I'm ...
5
votes
1answer
7k views

How do i change the default shell for shell-command

I am having an issue with one of the plugins i am running because its trying to use fish and does not like the parameters. Is there a way i can change emacs to use bash for any plugins that use shell-...
1
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1answer
232 views

interactive shell and C compilation inside emacs

I compiled a simple program in C (it does the sum of 2 numbers), by doing : M-x compile RET gcc -dummy.c -o dummy M-x shell RET ./dummy I get a prompt for the first number I can enter, then nothing ...
1
vote
1answer
2k views

shell strange characters

When running M-x shell I get strange additional characters. It looks like this, I should look similar to how it does in the terminal, I am very new to Emacs. Hopefully there is a simple fix. I am ...
1
vote
1answer
80 views

Is there a package to send a piece of text to shell and get the result back?

I want to know if there is a package to send a piece of text to shell commands like sed, awk or other text processing utilities and then get the result back to emacs? Thanks.
1
vote
1answer
347 views

Run a command with C-c C-c for a specific major mode

I have a file with a .md extension, and I want to run a command to interpret/parse a file when markdown-mode is active with a C-c C-c key combination, for example. I want to run this shell command: ...
3
votes
1answer
836 views

Run elisp from command line in running emacs

How can I execute elisp in the currently running emacs from the command line? The following command echoes 'hi' but doesn't set 'abc in the emacs instance. emacsclient --no-wait --eval '(message "hi"...
0
votes
2answers
180 views

evaluate sh source code, output is not displayed well

When I evaluate this: #+begin_src sh brew list #+end_src The result is good: However, if I use: #+begin_src sh brew info emacs #+end_src I get something weird: Does anyone know why this happens?
3
votes
1answer
377 views

Set default-directory relative to the place an Elisp function is defined

I have some custom elisp functions that need to run shell scripts using shell-command. I would like to use a relative path to the script, e.g.: (shell-command "./run.sh") rather than an absolute one:...
4
votes
2answers
1k views

Why is there a newline in the result of `shell-command-to-string`?

It seems that emacs appends a newline to the return value for shell-command-to-string. For example, the return value for (shell-command-to-string "pwd") is: "/path/to/directory " While the return ...
0
votes
1answer
36 views

Unexpected behavior when defining variable [duplicate]

I am trying to get the string value of a variable defined in a Python file and assign it to an elisp variable. The value is held in the variable org_file in a file config.py in the same directory as ...
1
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0answers
73 views

Display dropbox status

I would like my emacs to call dropbox status every 30 seconds and display whether Dropbox is up-to-date at the bottom of the buffer (where info such as the line-number and file name is). How could ...
2
votes
1answer
3k views

Trying to run a linux program in Emacs: command not found

I have a pdflatex program located in /usr/local/texlive/2014/bin/i386-linux/pdflatex I added it's folder to $PATH both in .bashrc and .bash_profile: PATH=$PATH:/usr/local/texlive/2014/bin/i386-...
5
votes
1answer
550 views

Send input to multiple buffers simultaneously

Is there something like multiple-cursors, but that would send input into multiple buffers at once? Use case: I want to send the same shell commands to a number of virtual machines and see the output ...
6
votes
1answer
927 views

Key binding with an argument

Say I have a shell command foo that I want to bind to a key. I could do for example: (global-set-key (kbd "C-c f") (lambda () (interactive) (shell-command "foo"))) I would like to be able to pass an ...
2
votes
1answer
636 views

Append shell-command output to named buffer

In my init file I have a function that runs a shell-command everytime I open emacs. I rarely need to look at the out put of this command, so having it pop up in the *Shell Command Output* buffer every ...
1
vote
1answer
127 views

M-x compile and shell-command ignore default-directory

On one computer I use, my emacs will always run commands in my home directory, rather than the directory of the currently open file (i.e. default-directory). A standalone reproduction is executing ...
5
votes
1answer
252 views

Output to magit-process

When I run built-in magit commands, they output to the magit-process buffer. How can I do the same with a custom magit command that generates shell output?
6
votes
1answer
2k views

Why Emacs overrides my PATH when it runs bash?

Why do (shell-command-to-string "echo $PATH") and echo $PATH in eshell differ from echo $PATH from ansi-term and gnome terminal in Ubuntu? Some paths are missing from (shell-command-to-string "echo $...
1
vote
0answers
46 views

How can I pass an argument (via highlighting) to a shell command while also passing the filename as an argument?

Im attempting to run a perl script on a buffer which will rearrange/edit the contents. I want to highlight a string and let that be my input as well as the buffer or file. Currently I can come close. ...
2
votes
1answer
127 views

Using replace-regexp with a shell command

I'm trying to format some text that matches a regexp using an external shell command. I've been able to use C-u M-| successfully on a region, but I can't figure out how to do that within replace-...
1
vote
1answer
320 views

Repeat last shell command shortcut

How can you repeat last shell command with a single shortcut (and no y/n prompts)? How to replace this sequence: C-u C-x s (or equivalent) to save all buffers M-! for (shell-command COMMAND &...
5
votes
1answer
1k views

Executing commands through shell-command (what is the PATH used)?

If I do: (getenv "PATH") I get a list of colon-separated directories, including: /Users/michaeln/Library/Haskell/bin If I look at the exec-path variable, I see a list including the same ...