Every time I'm visiting a file system in remote machine and I execute a command (e.g. grep) the emacs buffer with the result of that command also contains my verbose .bash_profile output.
How could I disable this behavior? That is, how to make the remote command only load .bashrc? (In tramp my remote method is ssh)
I suggest to move everything in your .bash_profile that outputs text to the end of the file and put the following before these commands:
If [ "$TERM" == "dumb" ]; then
return
fi
That should do it. Reread http://www.gnu.org/software/tramp/#Remote-shell-setup for more information.
Related
I have some utility scripts that copy text to my clipboard using pyperclip (python library).
When I use vscode in ssh mode to develop on my remote server, I want to still be able to run these scripts in the integrated terminal of the remote server, but make it copy text to my local clipboard.
I suspect there might be a way to do this, since running code <dirname> in the remote terminal, for example, opens a vscode window in my local machine, so I assume there's a way to intercept the commands to make them do something locally even if they run on the remote machine. Any suggestions?
xsel might help you.
I'm trying to get a similar result using a dev container, although I could use some help myself. My problem is that I can't configure X11 forwarding. If you can set that up, then the following might move you forward a bit:
copy-to-clipboard-file() {
[[ "$REGION_ACTIVE" -ne 0 ]] && zle copy-region-as-kill
print -rn -- $CUTBUFFER > xsel --clipboard
}
zle -N copy-to-clipboard-file
bindkey "^X" copy-to-clipboard-file
I don't know if zle is available in your shell; I'm using zsh. This binds Ctrl-X to copy the selected text. You'll need to install xsel.
You'll know if X11 forwarding is working because this will output something:
echo $DISPLAY
Also see:
How do I highlight text for copying and pasting in the VS Code terminal?
The shell command
emacsclient -n -e '(make-remember-frame)'
works.
But the applescript
do shell script "emacsclient -n -e '(make-remember-frame)'"
just returns
emacsclient: can't find socket; have you started the server?
To start the server in Emacs, type \"M-x server-start\".
emacsclient: No socket or alternate editor. Please use:
--socket-name
--server-file (or environment variable EMACS_SERVER_FILE)
--alternate-editor (or environment variable ALTERNATE_EDITOR)
I rarely use this, but it has worked successfully in the past for various purposes. Perhaps you can modify it to suit your needs. The init.el or .emacs file must have (server-start) inside in order to make everything work. I have lots of stuff that loads when Emacs is activated for the first time, so I need a 5 second delay before emacsclient is called -- you can adjust the delay downward if your Emacs loads faster. If Emacs is already running, there is no need for a delay. You can comment out the verbal messages generated by say -- I used them this morning to test the conditions and make a minor adjustment to the script. The script contains a command-line example on line 4, which calls two Emacs functions. Of course, the path to your Emacs and emacsclient will need to be adjusted to wherever you have installed them on your computer.
# `(server-start)` must be inside `init.el` or `.emacs` file.
# This script can be used in the terimal: osascript path-to-script arguments
# Terminal Example:
# osascript /Users/HOME/.0.data/.0.emacs/.emacsclient.applescript "-e '(progn (dired \"/Applications\") (message \"Hello-World\!\"))'"
on run argv
set arg to item 1 of argv
set emacs to application "Emacs"
set appIsRunning to emacs is running
if appIsRunning then
say "Emacs is already running."
do shell script "/Users/HOME/.0.data/.0.emacs/Emacs_06_01_2014.app/Contents/MacOS/bin/emacsclient " & arg
else
tell application "/Users/HOME/.0.data/.0.emacs/Emacs_06_01_2014.app/Contents/MacOS/Emacs" to activate
say "Please wait five seconds for Emacs to load."
delay 5
do shell script "/Users/HOME/.0.data/.0.emacs/Emacs_06_01_2014.app/Contents/MacOS/bin/emacsclient " & arg
end if
end run
I'm using org-mode and am looking to export my agenda (example of an agenda) to a text file so that I can display it with conky. The org-mode manual features this command line example to do this:
emacs -batch -l ~/.emacs -eval '(org-batch-agenda "t")' | lpr
I've modified this like so:
emacs -batch -l ~/.emacs -eval '(org-batch-agenda "e")' \
> ~/org/aux/agenda-export.txt
I have this set as a cron job to run every 5 minutes. It works great unless I actually have emacs open. Then I noticed that the file agenda-export.txt was empty. In running this manually from the coammand line vs. through cron, I get this error (or similar depending on the files I have open):
...~/org/file.org locked by jwhendy (pid 10935): (s, q, p, ?)?
I was going to write a script to perhaps export to agenda-export-test.txt, then perhaps check for an empty file or no lines (wc -l == 0 maybe?). If true, leave the existing file alone and delete agenda-export-test.txt. If not, then move agenda-export-test.txt to agenda-export.txt.
But... when I try to run such a script, I'm met with the same emacs inquiry about whether to steal the lock, proceed, or quit. I'm fine with proceeding, as I don't think org-agenda does anything to the files and thus it wouldn't harm anything... but I don't know how to tell emacs to "force" or choose "proceed" if problems are encountered. I need something non-interactive.
So, to summarize, my thoughts were to try:
passing a --force option or similar to emacs to make it proceed at the pause
see if the exported tmp file has any lines and deal with it accordingly
tell emacs to run in "read only mode" (but I don't think it exists)
The main issue is that with cron, I'm not there to tell the process what to do, and so it just just make an empty file as the exported results. How can I handle this locked file business with a "blind" process like cron that can't respond?
I've tried asking the mailing list as well without a working outcome. [1] I wondered if someone here might have ideas.
[1] http://www.mail-archive.com/emacs-orgmode#gnu.org/msg45056.html
Have you tried copying file without using emacs?
put in your crontab:
cp ~/org/file.org /tmp/export.org && emacs -batch .... /tmp/export.org ..
A regular "cp" command should not copy emacs locks. Of course, once in a while you might get a damaged file if you save agenda just during cp command, but this should not be too bad.
I tried to open a remote file via Emacs via Tramp.
(require 'tramp)
(setq tramp-default-method "ssh")
I get a message from Emacs
Tramp: Waiting for prompts from remote shell
Emacs hung and did not respond to any action after that
Emacs was installed on Windows; the remote file was on a Linux machine.
If the account you're connecting to uses some weird fancy shell prompt, then there is a good chance that this is what makes tramp trip.
Log in as root, then enter
PS1="> "
(that's a normal, standard shell (ZSH, BASH, younameit) prompt, one that tramp will understand)
then switch to the user account, and launch emacs -q (to make sure that your .emacs is not causing this mess) and try to C-x C-f /sudo:root#localhost:/etc/hosts and see what's what.
You can (not recommended) also customize the regexp that defines what tramp expects :
M-x customize-variable RET tramp-terminal-prompt-regexp
My approach :
Make sure the variable tramp-terminal-type is set to "dumb"
M-x customize-variable RET tramp-terminal-type
Test that in your .*shrc and serve the correct prompt :
case "$TERM" in
"dumb")
PS1="> "
;;
xterm*|rxvt*|eterm*|screen*)
PS1="my fancy multi-line \n prompt > "
;;
*)
PS1="> "
;;
esac
Your Windows ssh client is the key here, and the 'ssh' Tramp method is almost certainly wrong.
If you're using Cygwin, then you need to use the 'sshx' method, and you probably need to use ssh-agent to handle authentication. Details are here:
Using tramp with EmacsW32 and cygwin, possible?
I imagine the same applies to any stand-alone ssh client which does not require a full Cygwin installation, but does use the Cygwin DLLs. (I mention this, because I'm pretty sure I remember seeing such a thing.)
If you're using PuTTY then you want the 'plink' method, as Alex Ott pointed out. If the Wiki doesn't suffice, a search here will probably turn up solutions for configuring that approach.
Other alternatives I can suggest are:
Use the Cygwin-native Emacs. That will be slower than NTEmacs, but Tramp seems to work well with the 'ssh' method, and password-prompting works as well.
Host a Linux VM on your Windows box, and run Emacs on that. That's a fairly large hoop to jump through, but it's my preferred way of using Tramp when working in Windows.
Well, this is a defect of tramp.
The real solution is to prevent loading .bashrc when tramp is used. (because now it is PS1, but it can be PATH, or any other thing that your .bashrc will do that will displease tramp...).
This can be done by asking ssh to set an environment variable, and testing it in .bashrc:
Add this to ~/.emacs:
(require 'tramp-sh nil t)
(setf tramp-ssh-controlmaster-options (concat "-o SendEnv TRAMP=yes " tramp-ssh-controlmaster-options))
and that at the beginning of ~/.bashrc:
if [ ! -z ${TRAMP-x} ] ; then
return
fi
Another default of tramp is that it doesn't have a variable to pass random arguments to the ssh command, we have to piggy-back on tramp-ssh-controlmaster-options.
Had you checked Emacs wiki for solution? ssh is in PATH? It's also recommended to use plink on MS Windows - see section "Inline methods" in Tramp documentation
If the problem is your fancy custom prompt in the remote shell, an easy workaround is to add to your .bashrc or equivalent:
if [[ $TERM == "dumb" ]]; then
export PS1="$ "
fi
After you define your PS1.
Note: the credit goes to ChasingLogic as this is their suggestion in this thread.
By the way -- if You need tramp to sudo -- You can actually sudo without tramp using sudoedit.
Currently I'm using this bash function:
erf () { SUDO_EDITOR="emacsclient -a emacs" sudoedit $#; }
I use an emacs daemon to preserve my emacs session even if I have to reboot the machine that I run my X server on or if I want to access the same session from a different machine. This works very well but when restoring a session I'd quite like to just run "emacsclient --create-frame --no-wait" to connect to the daemon without opening a new file. It won't let me get away without specifying a filename.
I've tried using --eval to execute a function rather than open a file but the window just goes away when the evaluation is complete.
(Emacs 23.1 via backports on Debian GNU/Linux 5.0.)
From the help provided by emacsclient, you have a few options. First, is the one mentioned already which is emacsclient -c. That will try to create a frame associated with the emacs daemon. The advantage to this is that if DISPLAY is not set, then it will open emacs in the terminal.
Which brings us to the next best option (especially if you are logging in remotely): emacsclient -t which forces emacs to open up in terminal mode even if DISPLAY is set.
Also keep in mind that you can set the display from the command-line as well. I use this often when logging in remotely from VNC. The full command would be emacsclient -d DISPLAY -c
emacsclient -c works for me.
emacsclient -n -e "(make-frame)"
The -n flag means that the emacsclient doesn't wait, and the emacs instance doesn't destroy the frame.
If you are using emacs from the command line, you might also want to consider emacsclient -t