How to get pids in one process group in Linux OS

linux pid process-group
dylanoo picture dylanoo · Oct 23, 2012 · Viewed 18k times · Source

I have one question on Linux pid things. How to get pids in one same group? It seems easy to get all pids or pgid with 'ps' command in Linux, but how to get the pids that belong to same group, or in other words, how to get the pids of one same program? Anyone please give me some help on this? Thank you!

Answer

Edw4rd picture Edw4rd · Oct 23, 2012

from man ps

To print a process tree:
      ps -ejH
      ps axjf

pstree can also help

Updated: Use pidof to find the process pids of the named programs. e.g. pidof chrome will get all chrome pids.

Related questions

How to get process ID of background process?

I start a background process from my shell script, and I would like to kill this process when my script finishes. How to get the PID of this process from my shell script? As far as I can see variable $! …

Read More
What is a .pid file and what does it contain?

I recently come across a file with the extension .pid and explored inside it but didn't find much. The documentation says: A Pid-File is a file containing the process identification number (pid) that is stored in a well-defined location of …

Read More
What is the best way to ensure only one instance of a Bash script is running?

What is the simplest/best way to ensure only one instance of a given script is running - assuming it's Bash on Linux? At the moment I'm doing: ps -C script.name.sh > /dev/null 2>&1 || ./script.name.…

Read More