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Date:      Thu, 13 Sep 2007 15:10:07 -0500
From:      Jeffrey Goldberg <jeffrey@goldmark.org>
To:        Kurt Buff <kurt.buff@gmail.com>
Cc:        questions@freebsd.org
Subject:   Re: Scripting question
Message-ID:  <7DA08899-AE85-4F6E-84FA-CD217881635E@goldmark.org>
In-Reply-To: <a9f4a3860709131238u18a48a48kbd06cfbc720d4e4d@mail.gmail.com>
References:  <a9f4a3860709131016w54c12b6fy94fc2b0f286aea3d@mail.gmail.com> <20070913172001.GA78799@gizmo.acns.msu.edu> <a9f4a3860709131032q21bfefc2hf8d78cae53637576@mail.gmail.com> <20070913175510.GA78984@gizmo.acns.msu.edu> <a9f4a3860709131119h2d7589aej59587749bb1fa2ef@mail.gmail.com> <13D9DDEB-5AC6-4E2C-93F3-40054A97E3C9@goldmark.org> <a9f4a3860709131238u18a48a48kbd06cfbc720d4e4d@mail.gmail.com>

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On Sep 13, 2007, at 2:38 PM, Kurt Buff wrote:

>> Instead of grep -v take a look at comm.

> Interesting! I just looked at the man page, and while I don't think it
> it's going to be directly useful (or I'm just not reading the page
> correctly), it's a new utility to me - I'll keep it in mind for other
> things.

Maybe I haven't understood what you are after.

If you want to get lines that exist in either file1 or file2 but not  
both (and if the files are already sorted) then

   comm -3 file1  file2

will do that.

-j




-- 
Jeffrey Goldberg                        http://www.goldmark.org/jeff/




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