I use purcell/emacs.d configuration. When coding with python, I use following command to activate an env, with anaconda-mode.
M-x pythonic-activate RET /path/to/virtualenv RET
But nothing changes in the front window.
How to know which env is currently activated?
Related
I'm trying to override shortcut for workbench.action.terminal.split. Default shortcut (Ctrl+Shift+5) works fine, but when I change it to shortcut with Alt prefix (e.g. it gets passed to terminal.
I check that shell receives keypresses using stdbuf -o0 showkey -a.
Is there a way to make VSCode handle such shortcuts and not pass it to terminal?
There are settings that allow to fine tune weather vscode or terminal handle key bindings; I found them at :
#id:terminal.integrated.commandsToSkipShell,terminal.integrated.sendKeybindingsToShell,terminal.integrated.allowChords
adding workbench.action.terminal.split to the list "Commands To Skip Shell" should do the trick for you
Finally the problem was caused by enabling terminal.integrated.sendKeybindingsToShell setting.
https://github.com/microsoft/vscode/issues/151603
I'm new to the fish shell, and just trying to set my $EDITOR variable so that's it's persistent across sessions and reboots. Here's what I've tried so far:
Running set -gx EDITOR vim from the command line.
Running set -Ux EDITOR vim from the command line.
Running those commands, prefixed by set -e EDITOR to unset any previous value.
Adding the above commands to my ~/.config/fish/config.fish file (it complains set: Warning: universal scope selected, but a global variable “EDITOR” exists.)
Uninstalling oh-my-fish and removing all fish configs to start from scratch.
No matter what I do, the EDITOR variable always ends up being /usr/bin/nano whenever I open a new terminal, start a new session, or reboot. What's even more strange is that in ~/.config/fish/fishd.my-hostname, I see SET_EXPORT EDITOR vim, and nothing about nano. Is this some kind of fish default? If so, how can I set this correctly?
Edit: I'm running Fish 2.6.0 on Antergos Linux.
First, the fish config file is ~/.config/fish/config.fish. Editing the file you named won't have any effect. Second, fish does not have any default for, nor does it set, the EDITOR or VISUAL variables. So whatever is setting it to /usr/bin/nano is a customization unique to your system.
If you set -Ux EDITOR vim and do not set it in config.fish it should be set to vim even if it is already set when fish starts. Run that set command then do set -U | grep EDITOR and env | grep EDITOR to see that it is set as a universal variable and exported. Now type fish to start a sub-shell. Run the previous two commands and you should see that it is still set to the same value. Now type set -U EDITOR nano in the sub-shell followed by exit. In the earlier shell you should now see that EDITOR is set to nano.
Personally I don't like to use uvars for this since at the moment they are per-machine. I just do set -gX EDITOR (type -p vim) in my ~/.config/fish/config.fish. This ensures that if I start fish on a new machine on which I've installed my ~/.config/fish directory I get my expected defaults.
The other reason not to use a uvar in this way is that the resolution order is local scope, global scope, universal scope. Since environment vars imported when fish starts running are placed in the global scope they will shadow the uvar you defined. Do not export universal variables. It is unlikely to produce the desired results. Simply set -gx the var in your config.fish script.
P.S., When asking questions of this nature you should always include pertinent facts such as the OS you're using and the fish version.
I have set my readline mode to be vi in my ~/.inputrc
set editing-mode vi
I came to know that when you are in command mode, you can press v to open up current line in the editor defined in $EDITOR variable.
This works for me. But when I change the content in my editor, I am not sure how to get those changes back to my command line. How to do that?
After you make your changes just save and quit. The command will be executed after you quit. If you want to look at the command after you have executed it you can just push up.
If EDITER=vim or EDITOR=vi use :wq to save and quit
I tried to open a remote file via Emacs via Tramp.
(require 'tramp)
(setq tramp-default-method "ssh")
I get a message from Emacs
Tramp: Waiting for prompts from remote shell
Emacs hung and did not respond to any action after that
Emacs was installed on Windows; the remote file was on a Linux machine.
If the account you're connecting to uses some weird fancy shell prompt, then there is a good chance that this is what makes tramp trip.
Log in as root, then enter
PS1="> "
(that's a normal, standard shell (ZSH, BASH, younameit) prompt, one that tramp will understand)
then switch to the user account, and launch emacs -q (to make sure that your .emacs is not causing this mess) and try to C-x C-f /sudo:root#localhost:/etc/hosts and see what's what.
You can (not recommended) also customize the regexp that defines what tramp expects :
M-x customize-variable RET tramp-terminal-prompt-regexp
My approach :
Make sure the variable tramp-terminal-type is set to "dumb"
M-x customize-variable RET tramp-terminal-type
Test that in your .*shrc and serve the correct prompt :
case "$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 have some aliases and functions defined in ~/.bashrc.
I start emacs from a terminal window using emacs -nw
When I execute M-x shell-command, the aliases and functions from ~/.bashrc are not available, but give a "command not found".
I've googled quite a bit but all the posts I come across say, if I understand them correctly, that ~/.bashrc is the place where this should work (rather than ~/.profile or ~/.bash_profile).
What am I missing?
Aliases are available only in interactive shell - a snapshot from bash man page:
Aliases are not expanded when the
shell is not interactive, unless the
expand_aliases shell option is set
using shopt
(see the description of shopt under SHELL BUILTIN COMMANDS below).
If you start Emacs from an interactive shell (in which .bashrc, etc. have executed), then the commands from your .bashrc should be available for both shell-command and shell, at least that's how it works for me.
But yeah as the other answer says, there is not real way to get a .bashrc environment in emacs. There are some documentation about a .emacs_bash file, but that never worked for me.
Okay misread your question here. If you are looking for functions and aliases instead of commands by changing paths in .bashrc, the non-interactiveness is the problem. I guess you can change the default argument to shell-command (take a look at explicit-bash-args) to make bash interactive, but that probably has unintended consequences.
The accepted answer correctly states that "aliases are available only in interactive shell".
This means that in order to load (rightly located indeed) aliases from ~/.bashrc, an interactive shell would have to be launched with Emacs's M-x shell-command (M-!).
To achieve this, add -i (interactive) switch to the M-x shell-command with:
(setq shell-command-switch "-ic")
Side Note, not Emacs related:
On some operating systems users would need to add the line source ~/.bashrc to ~/.bash_profile (or similar), since ~/.bashrc is not always auto-read by a system.