1

I want to run a command, say touch ~/test.txt every time I'm logging out from my computer. Is that possible, and if so how should I go about doing this? I've looked at other responses but they were a bit too obscure. Specifically one mentioned that I should be finding some sort of 'common' file if I want this command to run for all user logout events. Any help is welcome, thanks ahead of time.

  • Which version of Ubuntu? If it has systemd, then there should be a Before target (haven't checked). If it is, you'll want to write a systemd unit which executes your command . – bytefire Oct 18 '17 at 15:36
  • My version is 16.04.3. I can't find this before target, should that be a file in pam.d? – Darpan Ganatra Oct 18 '17 at 15:53
  • Logout target doesn't look that straightforward. You can run systemctl list-unit-files -t target to get a list of all targets but without knowing off the top of the head, one would need to lookup likely candidates. – bytefire Oct 18 '17 at 16:14
1

If you mean "logging out" as closing GUI session..

Depends what GUI you use:

Gnome: The script /etc/gdm/PostSession/Default is run by root whenever someone quits his X session.

Source: How can I make a script run automatically after gdm login and logout? | Ask Ubuntu

Unity (Ubuntu default): in /etc/lightdm/lightdm.conf. below a chapter of [SeatDefaults] a command session-cleanup-script=/path/to/your-script.sh will do the trick.

Source: How to run a script at logout | Ask Ubuntu

KDE will run /usr/shutdown script.

Source: How to run a logoff script | KDE Community Forums

  • Do you know any general solution with systemd? – Anwar Apr 24 '18 at 13:45
0

If you aren't talking about the GUI, it depends on your shell:

bash has a ~/.bash_logout file that gets executed when a login shell closes.

zsh has a .zlogout (in your home or in the $ZDOTDIR directory).

You can put pretty much anything in either and have it run when you log out.

  • So I tried running a random touch logout command, didnt work. Any thoughts? – Darpan Ganatra Oct 19 '17 at 17:16
  • I have a .zlogin file that just runs "fortune" and a .zlogout with: "touch ~/logout_time" -- not sure about the bash version, but make sure you are running a login shell (see here: unix.stackexchange.com/questions/38175/…). GL! – docwebhead Oct 23 '17 at 14:23

Your Answer

By clicking “Post Your Answer”, you agree to our terms of service, privacy policy and cookie policy

Not the answer you're looking for? Browse other questions tagged or ask your own question.