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UGU: Unix Guru Universe - Unix Tip #4579- September 24, 2025
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Unix Tip #4579- September 24, 2025
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
4578
- NFS HANG FIX ON HP-UX
4577
- REGEXP MATCHING IN AWK
4576
- Public Relations
4575
- CLEANUP AT LOGOUT
4574
- SPEED UP INTERACTION TIME
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