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Full Discussion: Help comparing 2 files and sending differences
Top Forums Shell Programming and Scripting Help comparing 2 files and sending differences Post 302753733 by bakunin on Wednesday 9th of January 2013 09:38:39 AM
Old 01-09-2013
Quote:
Originally Posted by jabbott3
I have 2 files that need to be compared.
Do it with "diff". See "man diff" for details.

Quote:
Originally Posted by jabbott3
Email the differences if something is different and don't email if nothing is different.
Check the output of "diff" - if the files are identical the output will be empty and the return code of "diff" will also reflect that. You can use this (as well as any eventual output) to construct your mail the same way you already did in your scripts version.

I hope this helps.

bakunin
This User Gave Thanks to bakunin For This Post:
jabbott3
 

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LEARN ABOUT PLAN9

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 file1 is specified, it is compared to the uncompressed contents of file1.gz.  If two files are specified, their  con-
       tents  (uncompressed  if  necessary)  are  fed to cmp or diff.  The input files are not modified.  The exit status from cmp or diff is pre-
       served.

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 may refer to file names such as "-" instead of to the file names specified.

																	  ZDIFF(1)
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