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I'm trying to grab the owner of a process from a list.

I have the command pidof nmap to get the then ps -u <PID> | grep USER that I'm currently playing around with. But when I run it, it ends up just printing the titles (top line):

screenshot of ps

How can I grab the name of the owner given the process ID?

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1 Answer 1

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ps -o user= -p PIDHERE

This selects the process PIDHERE with -p, then instructs ps to format the output by printing only the column named user; the = sign means "rename the column user to (nothing)", effectively removing the header line.

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  • So is that (nothing), nothing, "nothing", "", , '', or just what? Mar 1, 2020 at 3:29
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    @Wolfpack'08 it's hard to denote "nothing" via text; sorry for the confusion. There's no replacement text after the equals-sign.
    – Jeff Schaller
    Mar 4, 2020 at 16:07

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