Steven W. Orr wrote: > On Monday, Feb 19th 2007 at 13:37 -0600, quoth Mikkel L. Ellertson: > > If you don't mind me getting picky... > > Shell commandlines have no idea about regular expressions. They do however > know about globbing which is still a powerful construct but nowhere near > as powerful as what regular expressions can do. > > Had the above example been a regex, it would have been written > differently: > > ls /dev/[sh]d.* > > In the first case, "Expand to /dev/ followed by either an s or an h > followed by a d followed by anything or possibly nothing." > > In the second case, "Expand to /dev/ followed by either an s or an h > followed by a d followed by any character which is allowed to repeat zero > or more times. > > Just so you don't either feel stupid or think I am ;-) right now, the > example here is the worst possible to demonstrate the point because this > glob doesn't need anything more than what a regex could provide. But > suffice it to say that there is a huge difference. > I do feel stupid - as you say, I picked a bad example, and didn't even think about the difference between globbing and regular expressions. I know better then that, but I was not thinking. Thank you for clearing this up! Mikkel -- Do not meddle in the affairs of dragons, for thou art crunchy and taste good with Ketchup!
