how to tell if an app is running

Peter Brigham MD pmbrig at
Fri Apr 9 09:04:13 EDT 2010

How do I tell if an app (eg, iTunes) is up and running vs not open?  
I'm assuming there's no native Rev function for this (or am I missing  
something?) and I'm not familiar enough with shell commands to figure  
it out.

-- Peter

Peter M. Brigham
pmbrig at

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