On Tue, Oct 18, 2011 at 02:04:38PM -0400, David Kramer wrote: > Thanks for all your help. The only real problem I'm having at this > point is matching square brackets. Since square brackets need to be > escaped even when maching a set of characters, I don't know how to tell > it to match an open square bracket then characters in a set, then a > close square bracket. > > This is what I mean: Lets say I want to match [ followed by lower case > letters or a period, followed by ]. > MATCH: [net.thekramers.foo] > NOT A MATCH: net.thekramers.foo > NOT A MATCH: [net.thekramers.Foo!]
You can use a character class that just contains the bracket, e.g.: $ cat junk.txt blah [foo.derek.bar] blah nada blah [foo.derek.bar!] blah nada blah foo.derek.bar blah nada $ grep '[[][a-z.]\+[]]' junk.txt blah [foo.derek.bar] blah nada $ sed 's/[[][a-z.]\+[]]/[address redacted]/g' junk.txt blah [address redacted] blah nada blah [foo.derek.bar!] blah nada blah foo.derek.bar blah nada -- Derek D. Martin http://www.pizzashack.org/ GPG Key ID: 0xDFBEAD02 -=-=-=-=- This message is posted from an invalid address. Replying to it will result in undeliverable mail due to spam prevention. Sorry for the inconvenience.
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