Date: Tue, 8 Aug 2006 11:43:11 -0400 From: "David Robillard" <david.robillard@gmail.com> To: "Odhiambo Washington" <wash@wananchi.com> Cc: FreeBSD Questions Mailing List <freebsd-questions@freebsd.org> Subject: Re: How to filter the contents of two text files. Message-ID: <226ae0c60608080843u4facbe83ibefa549f47aba9cb@mail.gmail.com>
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> Some little help is needed here ... > > I have two text files, each has just a single column of data > > FileA has 2798 entries, while FileB has 4242 entries; There are > entries in FileA that are also in FileB... > > I'd like to filter against the two files, so I only get those entries > in FileB that don't occur only in FileA .... There are a couple of commands to do exactly what you want. comm(1) -- select or reject lines common to two files http://www.freebsd.org/cgi/man.cgi?query=comm&apropos=0&sektion=0&manpath=FreeBSD+6.1-RELEASE&format=html diff(1) -- find differences between two files http://www.freebsd.org/cgi/man.cgi?query=diff&apropos=0&sektion=0&manpath=FreeBSD+6.1-RELEASE&format=html sort(1) -- sort lines of text files http://www.freebsd.org/cgi/man.cgi?query=sort&apropos=0&sektion=0&manpath=FreeBSD+6.1-RELEASE&format=html Enjoy! DA+ -- David Robillard UNIX systems administrator & Oracle DBA CISSP, RHCE & Sun Certified Security Administrator Montreal: +1 514 966 0122
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