I am a happy, but sometimes frustrated, system administrator of an Edubuntu LTSP installation in a private school's very busy computer lab. I'm running a fully up-to-date hardy 8.04 LTS setup.
Searching Google for 'ubuntu ltsp cleanup processe' it doesn't look like there is going to be a systemic solution to this in the immediate future, so I wrote a bash script (series of scripts, really) to clean up these many detached processes, without affecting users that are currently logged in or killing any system processes. The main script: killstale.scr can be run manually by root or via sudo. I run it hourly during school days via root's crontab. It looks like this: #!/bin/sh # # This series of bash commands will kill all processes owned by # ordinary users who are not currently logged in. # # Make a list of all processes with an owner ps axu | cut --delimiter=" " -f 1 | sort -u > killstale.list # Make a fresh list of all ordinary users with directory in /home ls --color=never /home > killstale.home # Reduce list to processes owned by those ordinary users fgrep -f killstale.list killstale.home > killstale.users # Find out who is currently logged in w -h | cut --delimiter=" " -f1 > killstale.w # Create new list minus users currently logged in fgrep -v -f killstale.w killstale.users > killstale.xusers # Identify user processes with user number grep 1... killstale.list > killstale.num # Find out who those user numbers belong to fgrep -f killstale.num /etc/passwd | cut --delimiter=: -f1 > killstale.name # Add those processes to the list cat killstale.xusers killstale.name > killstale.semi # Eliminate duplicate user names sort -u killstale.semi > killstale.final # Kill all processes owned by those not-logged in ordinary users /root/killstale1.scr killstale1.scr looks like this: #!/bin/sh /root/killstale2.scr < /root/killstale.final and killstale2.scr like this: #!/bin/sh read users while [ -n "${users}" ] ; do killall -u ${users} read users done I'm definitely interested in your thoughts or better ideas. Andy Figueroa -- edubuntu-users mailing list edubuntu-users@lists.ubuntu.com Modify settings or unsubscribe at: https://lists.ubuntu.com/mailman/listinfo/edubuntu-users