Steve Searle wrote: > Around 01:20am on Monday, February 19, 2007 (UK time), Jean-Rene David scrawled: > >> Another, shorter, way to do the same: >> >> ps auxw | grep '[p]rocessName' > > I like it, but can you explain why it works? > Regular Expressions. The [ ] specify a range to match. In this case, it only matched p so grep is looking for processName, and because the grep command has [p]rocessName it does not match. You can do things like "ls /dev/[sh]d*" will give a list of all sd and hd entries in the /dev directory. There is a lot more to it, but this gives you a small idea of the power of regular expressions. Mikkel -- Do not meddle in the affairs of dragons, for thou art crunchy and taste good with Ketchup!
