From owner-freebsd-questions  Thu Jan 31  9:23:10 2002
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Date: Thu, 31 Jan 2002 14:21:17 -0300 (ART)
From: Fernando Gleiser <fgleiser@cactus.fi.uba.ar>
To: =?iso-8859-1?q?adrian=20kok?= <adriankok2000@yahoo.com.hk>
Cc: <questions@freebsd.org>
Subject: Re: compare two files
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On Fri, 1 Feb 2002, adrian kok wrote:

> Thanks to Fernando

This one-liner shell script will tell you

for var in $(cat filea) ; do grep $var fileb; done



			Fer

>
> file filea
>
> ECU
> AU
> HKG
> CA
> USA
>
>
> file fileb
>
> BE
> DE
> USA
> AU
> CH
> CI
> PN
> HKG
>
>
> --- Fernando Gleiser <fgleiser@cactus.fi.uba.ar>
> wrote: > On Fri, 1 Feb 2002, adrian kok wrote:
> >
> > >
> > > Joel
> > >
> > > But the diff also outputs the data of fileB
> >
> > Just grep the part you want.
> >
> > If the files are similar, you can use diff's unified
> > or context format
> > man diff for details.
> >
> > If the files are not similar, and you want to know
> > if some random line of
> > filea exists in fileb, yo can write a little perl
> > script to do the job.
> >
> > If you tell us the format of the files you want to
> > compare, maybe we can
> > give you a more detailed answer.
> >
> >
> > 			Fer
> >
> >
> > >
> > > I only need fileA data whether it exists to fileB
> > >
> > > Thank you
> > >
> > >
> > >  --- Joel Dinel <dinjo@touchtunes.com> wrote: > It
> > > already exists, and it's called 'diff'.
> > > >
> > > > man diff
> > > >
> > > >
> > > > On Thu, Jan 31, 2002 at 11:50:13PM +0800, adrian
> > kok
> > > > wrote:
> > > > > Date: Thu, 31 Jan 2002 23:50:13 +0800 (CST)
> > > > > From: adrian kok <adriankok2000@yahoo.com.hk>
> > > > > Subject: compare two files
> > > > > To: freebsd-questions@FreeBSD.ORG
> > > > >
> > > > > I would like to know how to write script or
> > > > program to
> > > > > compare two file
> > > > >
> > > > > two files: file1 and file2
> > > > >
> > > > > check data of file1 whether exists in file2
> > > > >
> > > > > if not
> > > > >
> > > > > write this data in file1 or output to file
> > > > >
> > > > > #!/bin/sh
> > > > > $lista=fopen("a.txt", "r");
> > > > > $listb=fopen("b.txt", "r");
> > > > >
> > > > > while(!feof($lista)) {
> > > > > $dmbuffer = fgets ($lista);
> > > > > grep $dmbuffer $listb > diff;
> > > > > }
> > > > >
> > > > > Could you teach me or where can I get this
> > > > information
> > > > > from website
> > > > >
> > > > > TIA
> > > > >
> > > > >
> > > > >
> > > >
> > >
> >
> _______________________________________________________________________
> > > > > Do You Yahoo!?
> > > > > Get your free @yahoo.com.hk address at
> > > > http://mail.english.yahoo.com.hk
> > > > >
> > > > > To Unsubscribe: send mail to
> > majordomo@FreeBSD.org
> > > > > with "unsubscribe freebsd-questions" in the
> > body
> > > > of the message
> > > > ---end quoted text---
> > > >
> > > > --
> > > > Joel Dinel
> > > > System Administrator
> > > > TouchTunes Digital Jukebox, Inc.
> > > > GnuPG key :
> > > http://darkhost.mine.nu:81/~joel/misc/mykey.asc
> > >
> > >
> >
> _______________________________________________________________________
> > > Do You Yahoo!?
> > > Get your free @yahoo.com.hk address at
> > http://mail.english.yahoo.com.hk
> > >
> > > To Unsubscribe: send mail to majordomo@FreeBSD.org
> > > with "unsubscribe freebsd-questions" in the body
> > of the message
> > >
> >
>
> _______________________________________________________________________
> Do You Yahoo!?
> Get your free @yahoo.com.hk address at http://mail.english.yahoo.com.hk
>


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