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Full Discussion: File Comparison command but ignoring while spaces
Top Forums Shell Programming and Scripting File Comparison command but ignoring while spaces Post 302332480 by methyl on Thursday 9th of July 2009 08:52:46 AM
Old 07-09-2009
Or?
diff -w

---------- Post updated at 01:52 PM ---------- Previous update was at 01:34 PM ----------

If all you want to know is whether the files are different or not, test the reply code from "diff -w". The reply is "0" if they are identical after ignoring white space. The reply is "1" if they are different after ignoring white space.

Code:
diff -w file1 file2 >/dev/null;REPLY=$?
if [ ${REPLY} -eq 0 ]
then
         echo "Files are identical"
else
         echo "Files are different"
fi

 

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LEARN ABOUT SUSE

xzdiff

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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