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@viking

viking/i3-shell.sh

Last active Apr 29, 2020
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Bash script for i3 to run a terminal in the same working directory as the current focused application
#!/bin/bash
# i3 thread: https://faq.i3wm.org/question/150/how-to-launch-a-terminal-from-here/?answer=152#post-id-152
CMD=xterm
CWD=''
# Get window ID
ID=$(xdpyinfo | grep focus | cut -f4 -d " ")
# Get PID of process whose window this is
PID=$(xprop -id $ID | grep -m 1 PID | cut -d " " -f 3)
# Get last child process (shell, vim, etc)
if [ -n "$PID" ]; then
TREE=$(pstree -lpA $PID | tail -n 1)
PID=$(echo $TREE | awk -F'---' '{print $NF}' | sed -re 's/[^0-9]//g')
# If we find the working directory, run the command in that directory
if [ -e "/proc/$PID/cwd" ]; then
CWD=$(readlink /proc/$PID/cwd)
fi
fi
if [ -n "$CWD" ]; then
cd $CWD && $CMD
else
$CMD
fi
@projectgus

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@projectgus projectgus commented Aug 24, 2015

Thanks for this script, I've been using i3 for years and I've always just put up with navigating from the home directory in each terminal. This is great, can't believe I didn't do it ages ago.

I forked the script and made a minor change because I use sakura as a terminal and it spawns some threads internally. The last line from pstree -A was always a sakura thread. The modified script greps for the process pattern in the pstree output, avoiding any threads. It's pretty hacky but it works again.

Thanks again!

@TiddoLangerak

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@TiddoLangerak TiddoLangerak commented Sep 27, 2015

Thanks for this script! I also forked this script to make it work for terminals running tmux as well.

@jjvilm

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@jjvilm jjvilm commented Apr 19, 2016

love it!

@ghost

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@ghost ghost commented Aug 28, 2017

On my system, by default the pstree command sorts children by name, and I end up with this, which fails:

x-terminal-emul(5525)-+-bash(5527)
                      `-x-terminal-emul(5526)

It can be fixed by adding the -n argument to pstree:

  TREE=$(pstree -lpAn $PID | tail -n 1)
@doak

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@doak doak commented Nov 25, 2019

I updated the script to get CWD more reliable (for my use case).
For instance, it uses current working directory of foreground Vim instance, but if Vim is stopped (Bash's job control), it uses the current working directory of its parent shell.

The patch for tmux (of @TiddoLangerak) is not incorporated.

@suchAdemon

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@suchAdemon suchAdemon commented Apr 29, 2020

you can also get the information from i3-msg (as long as you terminal is able to update name/title with the path)
#!/bin/bash
cd "$(i3-msg -t get_tree | jq -r '.nodes | .[].nodes | .[].nodes | .[].nodes | .[].nodes | .[] | select( .focused==true) | [.name]' 2>&1 | sed -e '2!d;s/^.*://g;s/"$//g' | sed -e "s|^~|${HOME}|g")" || cd ~
/path/to/your/terminal

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