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Date:      Fri, 6 May 2011 22:34:28 -0400
From:      Eitan Adler <lists@eitanadler.com>
To:        Rolf Nielsen <listreader@lazlarlyricon.com>
Cc:        FreeBSD <freebsd-questions@freebsd.org>
Subject:   Re: Comparing two lists
Message-ID:  <BANLkTinGtUcE79o=9iMqY68-BXMO8txTXw@mail.gmail.com>
In-Reply-To: <4DC48DB6.8030907@lazlarlyricon.com>
References:  <4DC48DB6.8030907@lazlarlyricon.com>

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....
> They have some lines in common
> and some lines are unique to one of the files.

Use comm whenever you are dealing with set operations (in your case
the intersection operation):
http://www.catonmat.net/blog/set-operations-in-unix-shell


-- 
Eitan Adler



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