Unix Tip: KILLING ALL USER PROCESSES

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UNIX GURU UNIVERSE
UNIX HOT TIP

Unix Tip 3563 - November 10, 2012

http://www.ugu.com/sui/ugu/show?tip.today

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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


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