Comments on: Bash script or command to get a process id

By: joshua paul

joshua paul — Thu, 12 Jan 2012 12:10:06 +0000

thanks! this was good for killing the google chrome helper bug which uses 100% cpu on the mac.

here’s what i used:

kill -9 `ps -eo pid,%cpu,comm | grep “Google Chrome Helper.app” | grep “100″ | cut -c1-6`

allan — Tue, 08 Nov 2011 13:21:12 +0000

hmmm, above post seemed to lose what i’d written between brackets.

Should be:
ps -C’command’ -opid –noheading

above command has the advantage of needing no special packages, jsut plain old bash.

allan — Tue, 08 Nov 2011 13:13:35 +0000

Was trying to do the same. Eventually (after an unjustifibly long amount of experimenting) i hit upon:

ps -C -opid –noheading

which should print out directly without the need for any greps.

NssY — Sat, 05 Nov 2011 02:33:23 +0000

pidof processname

nsomnac — Fri, 09 Sep 2011 16:27:26 +0000

This only works if you have only one instance of you’re shell script running at the same time. Otherwise you get multiple PIDs.

hanyoud — Tue, 28 Apr 2009 05:28:29 +0000

is there one command can return pid of the command after it excuted.

echo $$
echo $!

Stii — Fri, 23 Jan 2009 11:51:28 +0000

Thx Dominic, will check it out!

Dominic White — Fri, 23 Jan 2009 11:08:30 +0000

Sorry, my brackets were stripped, thats:

pgrep processname

Thanks for the hat tip btw.

Dominic White — Fri, 23 Jan 2009 11:07:55 +0000

I’ve got an even simpler one for you:

pgrep

I Debian/Ubuntu it’s part of the procps package.