Tuesday, January 4, 2011

How to count how many processes each user is running in Linux

There are lots of ways to do this, we can use pipes here.

ps hax -o user | sort | uniq -c

ps will list the processes
h will remove the header
-o user prints only the user column
sort sorts in alphabetical order
uniq command can eliminate or count duplicate lines in a presorted file.

reference: http://www.go2linux.org

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