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Full Discussion: Script to compare 2 files and prints difference as output sidebyside
Top Forums Shell Programming and Scripting Script to compare 2 files and prints difference as output sidebyside Post 302755365 by Yoda on Saturday 12th of January 2013 08:17:03 PM
Old 01-12-2013
You're absolutely correct about using diff command. I mentioned it already in Post #3 that using diff command is the best option here.

I was just suggesting a different approach as per requester's requirement.
 

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LEARN ABOUT DEBIAN

zdiff

ZDIFF(1)						      General Commands Manual							  ZDIFF(1)

NAME

       zcmp, zdiff - compare compressed files

SYNOPSIS

       zcmp [ cmp_options ] file1 [ file2 ]
       zdiff [ diff_options ] file1 [ file2 ]

DESCRIPTION

       Zcmp  and  zdiff are used to invoke the cmp or the diff program on files compressed via gzip.  All options specified are passed directly to
       cmp or diff.  If only one file is specified, then it is compared to a file with the same name without the .gz extension. If two	files  are
       specified, then they are uncompressed if necessary and fed to cmp or diff.  The exit status from cmp or diff is preserved.

       When  both files must be uncompressed before comparison, the second is uncompressed to /tmp.  In all other cases, zdiff and zcmp use only a
       pipe.

SEE ALSO

       cmp(1), diff(1), zmore(1), zgrep(1), znew(1), zforce(1), gzip(1), gzexe(1)

BUGS

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

																	  ZDIFF(1)
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