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Full Discussion: compare 2 file contents , if same delete 2nd file contents
Top Forums UNIX for Dummies Questions & Answers compare 2 file contents , if same delete 2nd file contents Post 302401756 by abubacker on Monday 8th of March 2010 12:11:47 AM
Old 03-08-2010
I think md5sum would help, and comparison is so easy and perfect
Please refer this script
Code:
file1="`md5sum filename1 |cut -d ' ' -f 1`"
file2="`md5sum filename2 |cut -d ' ' -f 1`"

if [ $file1 =  $file2 ]
then
        echo "remove the second file" ;
        # remove the second file using rm command
else
        echo "keep quite" ;
fi

 

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LEARN ABOUT MINIX

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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