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Full Discussion: PERL Scripting: Diff 2 files and save output to file3
Top Forums Shell Programming and Scripting PERL Scripting: Diff 2 files and save output to file3 Post 302438793 by script2010 on Tuesday 20th of July 2010 10:23:07 PM
Old 07-20-2010
PERL Scripting: Diff 2 files and save output to file3
Hi,

I need to create a script to compare 2 files and store the output in a 3rd file.
This is how I do manually, but since I need to do this for about 150 files every week, I am trying to automate it using perl.
diff -u file1 file2 > file3.patch

For my script,

- I have 2 files under different file paths, say
$gpath = $WS_GOOGLE_COMPARE . $_;
$lpath = $WS_LOCAL . $_;

- I want to diff these files in 2 different paths and store the output in a 3rd file path location, say /home/diff.patch (this is a third path location)

Please help.
 

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LEARN ABOUT SUSE

lzcmp

XZDIFF(1)							     XZ Utils								 XZDIFF(1)

NAME

       xzcmp, xzdiff, lzcmp, lzdiff - compare compressed files

SYNOPSIS

       xzcmp [cmp_options] file1 [file2]
       xzdiff [diff_options] file1 [file2]
       lzcmp [cmp_options] file1 [file2]
       lzdiff [diff_options] file1 [file2]

DESCRIPTION

       xzcmp  and  xdiff invoke cmp(1) or diff(1) on files compressed with xz(1), lzma(1), gzip(1), or bzip2(1).  All options specified are passed
       directly to cmp or diff.  If only one file is specified, then the files compared are file1 (which must have a suffix of	a  supported  com-
       pression  format)  and  file1 from which the compression format suffix has been stripped.  If two files are specified, then they are uncom-
       pressed if necessary and fed to cmp(1) or diff(1).  The exit status from cmp or diff is preserved.

       The names lzcmp and lzdiff are provided for backward compatibility with LZMA Utils.

SEE ALSO

       cmp(1), diff(1), xz(1), gzip(1), bzip2(1), zdiff(1)

BUGS

       Messages from the cmp(1) or diff(1) programs refer to temporary filenames instead of those specified.

Tukaani 							    2009-07-05								 XZDIFF(1)
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