Date: Mon, 17 May 2004 09:25:56 -0700 From: Drew Tomlinson <drew@mykitchentable.net> To: Erik Trulsson <ertr1013@student.uu.se> Cc: FreeBSD Questions <freebsd-questions@freebsd.org> Subject: Re: grep & RegEx Syntax- How to Match? -- SOLVED Message-ID: <40A8E794.6040309@mykitchentable.net> In-Reply-To: <20040517153636.GA23982@falcon.midgard.homeip.net> References: <40A8D6A5.5090705@mykitchentable.net> <20040517153636.GA23982@falcon.midgard.homeip.net>
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On 5/17/2004 8:36 AM Erik Trulsson wrote: >On Mon, May 17, 2004 at 08:13:41AM -0700, Drew Tomlinson wrote: > > >>I've learned a little about regular expressions and am trying to use >>them with grep. I want to parse my httpd log to return entries that >>contain a particular IP address and file ending in .htm or .html. I >>want to match lines like this one: >> >>123.456.789.123 - - [17/May/2004:06:54:53 -0700] "GET >>/public/murphys/produced/tricks.html HTTP/1.0" 200 5446 "-" >>"Mozilla/4.77 [en] (X11; U; Linux 2.2.19 i686)" >> >> > >Is that supposed to be a single line, or is it actually three lines in >the log. >That matters because grep works on lines. >I will assume that it is only line in the log. > > Sorry. Yes, one single line. >>I'm using the this command: >> >>egrep -e ^123\.456\.789\.123.*htm.* /path/to/file >> >> > >Try quoting the argument given to egrep, otherwise your shell might try >to expand '*' as a wildcard. >I.e. try > >egrep -e '^123\.456\.789\.123.*htm.*' /path/to/file > > Thank you! Yes, this works as I expect. >>However this does not match anything. If I shorten the regex to >>^123\.456\.789\.123, I match all entries with that IP address. And if I >>use 'htm' as the regex, I get match all lines with html files. But I >>can't find the right syntax to match on both conditions. >> >> > >You could try piping the output from the first grep into a second grep. >For example: > >grep '^123\.456\.789\.123' /path/to/file | grep 'htm' > > Another good idea. Thanks for your help! Drew -- Visit The Alchemist's Warehouse Magic Tricks, DVDs, Videos, Books, & More! http://www.alchemistswarehouse.com
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