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Full Discussion: Compare two files
Top Forums Shell Programming and Scripting Compare two files Post 69931 by Omkumar on Friday 22nd of April 2005 12:04:11 AM
Old 04-22-2005
This will do,

Compare.sh
#!/bin/sh
#cut column 3 from FileA and put it to FileA.tmp
cat FileA | cut -f3 -d";" > FileA.tmp
#cut column 4 from FileB and put it to FileB.tmp
cat FileB | cut -f4 -d";" > FileB.tmp
#compare FileA.tmp and FileB.tmp
diff FileA.tmp FileB.tmp
rm FileA.tmp FileB.tmp

sh Compare.sh
2a3
> d
4,5d4
< f
< q

-Om
 

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File::Find::Rule::Procedural(3) 			User Contributed Perl Documentation			   File::Find::Rule::Procedural(3)

NAME
File::Find::Rule::Procedural - File::Find::Rule's procedural interface SYNOPSIS
use File::Find::Rule; # find all .pm files, procedurally my @files = find(file => name => '*.pm', in => @INC); DESCRIPTION
In addition to the regular object-oriented interface, File::Find::Rule provides two subroutines for you to use. "find( @clauses )" "rule( @clauses )" "find" and "rule" can be used to invoke any methods available to the OO version. "rule" is a synonym for "find" Passing more than one value to a clause is done with an anonymous array: my $finder = find( name => [ '*.mp3', '*.ogg' ] ); "find" and "rule" both return a File::Find::Rule instance, unless one of the arguments is "in", in which case it returns a list of things that match the rule. my @files = find( name => [ '*.mp3', '*.ogg' ], in => $ENV{HOME} ); Please note that "in" will be the last clause evaluated, and so this code will search for mp3s regardless of size. my @files = find( name => '*.mp3', in => $ENV{HOME}, size => '<2k' ); ^ | Clause processing stopped here ------/ It is also possible to invert a single rule by prefixing it with "!" like so: # large files that aren't videos my @files = find( file => '!name' => [ '*.avi', '*.mov' ], size => '>20M', in => $ENV{HOME} ); AUTHOR
Richard Clamp <richardc@unixbeard.net> COPYRIGHT
Copyright (C) 2003 Richard Clamp. All Rights Reserved. This module is free software; you can redistribute it and/or modify it under the same terms as Perl itself. SEE ALSO
File::Find::Rule perl v5.16.2 2011-09-19 File::Find::Rule::Procedural(3)
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