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UGU: Unix Guru Universe - Unix Tip #4151- June 23, 2012 - Home : Help : Today's Tip
Unix Tip #4151- June 23, 2012

KILLING ALL USER PROCESSES


The common method for killing all of a users processes
usually involves grepping the users name from 'ps', then
using awk to get the process id's and submitting them
to 'kill -9'.

Sys V
ex: kill -9 $(ps -fuusername | awk '{ print $2 }' )

BSDish
ex: kill -9 $(ps -aux |grep username | awk '{ print $2 }' )

The problems with doing this way are that it is slow, and
more importantly, it doesn't always kill all of the processes
on the first try.

There is a way to do this that always kills all of the users
processes the first time, and is very fast:

su - username -c 'kill -9 -1'


This tip generously supported by: jkstill@teleport.com

NOTE: All tips provided are USE AT YOUR OWN RISK. Tips are submitted by various unix admins around the globe. UGU suggest you read and test each tip in a non-volitile environment before placing into production.


LAST 5 TIPS
4150 - NFS HANG FIX ON HP-UX
4149 - REGEXP MATCHING IN AWK
4148 - Public Relations
4147 - CLEANUP AT LOGOUT
4146 - SPEED UP INTERACTION TIME


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