From owner-freebsd-questions  Thu Jan 31  8: 7:11 2002
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Date: Fri, 1 Feb 2002 00:06:55 +0800 (CST)
From: =?iso-8859-1?q?adrian=20kok?= <adriankok2000@yahoo.com.hk>
Subject: Re: compare two files
To: Joel Dinel <dinjo@touchtunes.com>
Cc: questions@FreeBSD.ORG
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Joel

But the diff also outputs the data of fileB

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
> > 
> > 
> >
>
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> ---end quoted text---
> 
> -- 
> Joel Dinel
> System Administrator
> TouchTunes Digital Jukebox, Inc.
> GnuPG key :
http://darkhost.mine.nu:81/~joel/misc/mykey.asc 

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