This command will be useful if in case your user is doing something “naughty” and you want to kill them this is how you do it:
How to stop and halt (pause) the user
# skill -STOP -u username
How to continue the halted user
# skill -CONT -u username
How to Kill and make them logout from the computer
# skill -KILL -u username
How to kill all the user in the system
# skill -KILL -v /dev/pts/*
Hope this will be useful for some of you to who have some difficult time with the user.



on my system skill(1) says:
“DESCRIPTION
These tools are probably obsolete and unportable. The command syntax is poorly defined. Consider using the killall, pkill, and pgrep commands instead.”
killall, pkill, pgrep and skill are all part of the procps package.
By: housetier on January 22, 2009
at 8:17 pm
well this tool is well proven for me, i can kill any user that login into my machine anytime
By: tazlambert on February 3, 2009
at 8:33 pm