| Stephen Gran on 10 Nov 2003 22:45:02 -0500 |
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On Mon, Nov 10, 2003 at 10:21:32PM -0500, Michael C. Toren said: > On Mon, Nov 10, 2003 at 09:53:22PM -0500, Stephen Gran wrote: > > I am trying to write a regexp that lets me use grep (or really, > > egrep) to read a standard conffile-style file. This means that I > > want to ignore any line that begins with a comment (for which I am > > currently only allowing the use of #), any line that is just a > > newline, and any line that is just whitespace (we don't need to > > worry about the possibility of multiline strings in this case). I > > can come up with egrep -v '^#|^$' to ignore comments and _only_ > > newlines, but I would also like to ignore unseen whitespace (like > > \s*) - [:space:] just doesn't seem to be working for me. Can > > somebody whack me with a cluebat? > > The "[:space:]" needs to occur within a character class, which > effectively requires the use of double square brackets. Try: > > egrep -v '^[[:space:]]*(#|$)' Ah that explains my problem. Thank you very much. Just to mke sure I am parsing your solution correctly, I read this as: if the line begins with 0 or more spaces, followed by either # or newline, then ignore it - yes? That looks like exactly what I want. -- -------------------------------------------------------------------------- | Stephen Gran | There is no substitute for good | | steve@lobefin.net | manners, except, perhaps, fast | | http://www.lobefin.net/~steve | reflexes. | -------------------------------------------------------------------------- Attachment:
pgpeNvhidF2OV.pgp
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