On Jan 10, 2005, at 8:36 AM, Our PAl Al wrote: > Don't quite fully understand it but I think I can still use it. > > Why do you have the [] around the F in Finder? When I use that line, > it doesn't work. ps -ax | grep Finder (without the [] ) works fine. Strange, it should... It does work here as well. The [] denote a "set" of characters, but in this case there is only one so there's no reason to use it. I suspect it may have been [Ff]inder at some point, matching upper or lower case F in front of inder. But I'd probably just use grep -i finder in that case, and let it find any combination of upper and lower case. But you always have to be careful to only match what you REALLY want so something else doesn't trip you up.