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Top Forums Shell Programming and Scripting Using Diff to Compare 2 files Post 302410929 by grepFruit on Wednesday 7th of April 2010 07:14:22 AM
Old 04-07-2010
Code:
 
$ comm -13 file1 file2 > file3
$ cat file3
Access Grant Blocks Reserved,CELL,1A,,,,AGBLK,0,0,1,CELL,1A,,,,ERICSSON,GSM,07B
Access Grant Blocks Reserved,CELL,1A,,,,AGBLK,0,0,1,CELL,1A,,,,ERICSSON,GSM,07B
$

 

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Algorithm::Diff::XS(3pm)				User Contributed Perl Documentation				  Algorithm::Diff::XS(3pm)

NAME
Algorithm::Diff::XS - Algorithm::Diff with XS core loop SYNOPSIS
# Drop-in replacement to Algorithm::Diff, but "compact_diff" # and C<LCSidx> will run much faster for large data sets. use Algorithm::Diff::XS qw( compact_diff LCSidx ); DESCRIPTION
This module is a simple re-packaging of Joe Schaefer's excellent but not very well-known Algorithm::LCS with a drop-in interface that simply re-uses the installed version of the Algorithm::Diff module. Note that only the "LCSidx" function is optimized in XS at the moment, which means only "compact_diff" will get significantly faster for large data sets, while "diff" and "sdiff" will run in identical speed as "Algorithm::Diff". BENCHMARK
Rate Algorithm::Diff Algorithm::Diff::XS Algorithm::Diff 14.7/s -- -98% Algorithm::Diff::XS 806/s 5402% -- The benchmarking script is as below: my @data = ([qw/a b d/ x 50], [qw/b a d c/ x 50]); cmpthese( 500, { 'Algorithm::Diff' => sub { Algorithm::Diff::compact_diff(@data) }, 'Algorithm::Diff::XS' => sub { Algorithm::Diff::XS::compact_diff(@data) }, }); SEE ALSO
Algorithm::Diff, Algorithm::LCS. AUTHORS
Audrey Tang <cpan@audreyt.org> COPYRIGHT
Copyright 2008 by Audrey Tang <cpan@audreyt.org>. Contains derived code copyrighted 2003 by Joe Schaefer, <joe+cpan@sunstarsys.com>. This library is free software; you can redistribute it and/or modify it under the same terms as Perl itself. perl v5.12.3 2008-10-24 Algorithm::Diff::XS(3pm)
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