[LAU] another scripting question

Kjetil S. Matheussen k.s.matheussen at notam02.no
Mon Feb 18 12:17:50 EST 2008

Dave Phillips:
> Greetings,
> I'd like to add some conditional tests to my simple scripts. For
> example, I want to query the system to determine whether JACK is already
> running. If it is, I'll run an app (e.g. xine or AlsaPlayer) configured
> for JACK. If JACK is not running, I'll run the app without it.
> So how do I test for JACK in a simple bash shell script ?


This seems to work:

if jack_lsp >/dev/null 2>/dev/null ; then
   echo "running"
   echo "not running"

I'm not sure if its the best way though. (what if jack_lsp changes in
a later version?)

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