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From: Lawrence D'Oliveiro <ldo@nz.invalid>
Newsgroups: comp.unix.shell
Subject: Re: Basic ps Tips
Date: Tue, 30 Jul 2024 20:43:52 -0000 (UTC)
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On Sat, 27 Jul 2024 00:40:49 -0000 (UTC), I wrote:

> Another useful command to use with ps is pgrep(1)
> <https://man7.org/linux/man-pages/man1/pgrep.1.html>  

If you are expecting more than one process to match your criteria, it
is easy enough to use the “-d,” option to comma-separate them. Then the
output becomes acceptable to the “-p” option in ps, e.g.

    ps -p$(pgrep -d, bash) -wwo pid,ppid,lstart,tty,etime,cmd

to report all the bash sessions I have running (quite a lot). The “ww”
says not to truncate the output, which is handy for long command lines.