How to terminate tmux session and processes it spawned

Question

I noticed that i have a running process and I think it's because i initialized the process in byobu which is using tmux.

ps aux | grep sidekiq
1000     13786  0.0  0.0   8108   900 pts/4    S+   11:27   0:00 grep sidekiq

I have a tmux session called "3". As you can see below:

$ byobu   

Byobu sessions...

  1. tmux: 3: 1 windows (created Wed Aug 28 10:57:54 2013) [229x84] (attached)
  2. tmux: daemon: 1 windows (created Thu Jul 11 12:59:09 2013) [127x83]
  3. tmux: juggernaut: 1 windows (created Thu Jul 11 12:54:08 2013) [80x23]

I would like to exit that session and end all running processes that were created by that session.

Answer 1

tmux kill-session [-t session_name]

the processes in the virtual terminals should receive SIGHUP.

Answer 2

This was bothering me as well, so I wrote a tmux plugin for this. It's not perfect, but can easily be extended to know how to safely kill most kinds of processes before exiting tmux: tmux-safekill

Answer 3

Maybe it's not the most elegant solution, but does what you asked for:

tmux list-panes -s -F "#{pane_pid} #{pane_current_command}" | grep -v tmux | awk '{print $1}' | xargs kill -9

If you run this from within your tmux-session, it will kill all the processes it spawned, and you can then quit tmux with exit.

Answer 4

(disclaimer: i am beginner) This script terminates all panes/windows in some_session and exits:

#!/usr/bin/env bash

session="some_name"

echo about to kill ${session}, ok?
read -n 1 -s -r -p "Press key..."
echo 

sessiontest=`tmux ls | grep ${session}`

if [ "${sessiontest}" == "" ]; 
then
        echo no running session ${session}
else        
        for name in `tmux list-windows -F '#{window_name}' -t ${session}` ; do 

        tmux select-window -n

        for pane in `tmux list-panes -F '#{pane_id}' -t ${session}` ; do 
        tmux send-keys -t $pane C-c
        # send SIGINT to all panes in selected window
        echo ${session}:$name.${pane//%}
        done

        for pane in `tmux list-panes -F '#{pane_pid}' -t ${session}` ; do 
        kill -TERM ${pane}
        # terminate pane
        done

        done 
fi

echo list-sessions:
tmux list-sessions