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I want to see list of process created by specific user or group of user in Linux Can I do it using ps command or is there any other command to achieve this?

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    ps -u username. Most commands have a manual page which you can read with man the-command. Commented Aug 4, 2013 at 9:03

3 Answers 3

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To view only the processes owned by a specific user, use the following command:

top -U [username]

Replace the [username] with the required username

If you want to use ps then

ps -u [username]

OR

 ps -ef | grep <username>

OR

ps -efl | grep <username>

for the extended listing

Check out the man ps page for options

Another alternative is to use pstree wchich prints the process tree of the user

pstree <username or pid>
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    All ` ... | grep <username>` solutions don't work if you have two usernames which are longer than N chars. In my case N is 6.
    – guettli
    Commented Jan 19, 2018 at 10:44
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    Note: I got an error for top -U [username], and top -u [username] worked for me instead. Debian 9. So if anybody else gets an error with the -U form, try the lowercase.
    – Gloweye
    Commented Oct 29, 2018 at 9:08
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    Note: On FreeBSD it is ps -U <username> (notice the capital U) Commented Apr 28, 2021 at 17:13
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try this one

ps -fp $(pgrep -u <username>)
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  • How is this better than ps -u <username>, as mentioned in the existing answer (or ps -fu <username> if you want process details)? Commented Jan 23, 2018 at 8:27
  • ps -u doesn't provide full process details, but ps -fu <username> does. Agree ps -fu is a best solution
    – user939407
    Commented Jan 24, 2018 at 10:03
  • pgrep -u <username> | xargs ps u shows even more process details.
    – ks1322
    Commented Apr 18, 2022 at 19:11
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Note that -e (show all processes) overrides -u and makes it be ignored.

I was passing -e all the time without knowing what the option does, because I usually used ps -ef, and that made -u not work.

So if you want full listing you can keep the -f:

ps -fu USERNAME

Tested on Ubuntu 22.10,

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