Run shell command at user logout

Hello,

I'd like to run the following command every time a user logs out of his Gnome desktop.

rm -Rf /tmp/*

Is there a way to execute this command automatically as soon as they log off? There is only one user on this system at a time.


OS - Ubuntu Linux 7.10


cacv12000Asked:
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FilipeMaiaConnect With a Mentor Commented:
Due to the fact that Gnome has no login screen and your are connecting using NX I think you don't have much choices. I think the best solution is to edit the /usr/NX/etc/node.cfg in the servers and change COMMAND_START_GNOME to a script of your own. Something like:

In /usr/NX/etc/node.cfg
COMMAND_START_GNOME=/usr/local/bin/nx-gnome-session


In /usr/NX/etc/node.cfg
#!/bin/bash
/usr/bin/gnome-session
cleanup_script

It's important not to have a '&' in the gnome-session line otherwise the cleanup_script will run at login.
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omarfaridCommented:
Hi,

For users using bash, add the command to ~/.bash_logout which should be executed when logged out.
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http:// thevpn.guruCommented:
adding to what omarfarid said ~/.bash_logout refers to /home/youruser/.bash_logout and .bash_logout is a hidden file ...hence the dot in front of the filename. So if you dont change your browser settings you wont see it.
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omarfaridCommented:
Thanks shakoush2001 :)

By the way, in which country do you live?
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cacv12000Author Commented:
Hi,

But is .bash_logout supposed to run when logging out of Gnome or just when logging out of a bash shell.
I just tried the above recommendations and it worked great when I logged in through ssh and then logged out but when I log into the Gnome desktop and then log out this does not work.

I tested this by creating a file in /tmp as a normal user called test.file.

The reason I'm going through all this trouble is that we use nomachine nx  to log in remotely to the Gnome desktop. Gnome applets seem to crash intermittently when going through nx but clearing /tmp between connections seems to resolve that issue. I'd like the /tmp clearing to be automated...

Thanks!
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http:// thevpn.guruCommented:
you can add the code to


/etc/gdm/PostSession/Default

Omar..I am in Lebanon :)..and dont ask about the name it started out as a joke and i got stuck with it since I cant change the display name in EE ;). I have checked your profile and you have got 17 years of experience to show ...I really respect that.
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omarfaridCommented:
Thank you shakoush2001 :)

Where I can get more info bout /etc/gdm/PostSession/Default ?
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http:// thevpn.guruCommented:
Your welcome Omar as for the script..check out this article..simple but it does the job..I personally prefer KDE

http://www.bxlug.be/en/articles/74
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FilipeMaiaCommented:
On the last script I obviously meant

"In /usr/local/bin/nx-gnome-session" not "In /usr/NX/etc/node.cfg"

My apologies.
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cacv12000Author Commented:
Excellent Filipe!
The other solutions above do work but not for my particular case. Thanks!
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