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Full Discussion: Diffing words - percentages
Top Forums Shell Programming and Scripting Diffing words - percentages Post 302752129 by binlib on Saturday 5th of January 2013 04:56:27 PM
Old 01-05-2013
If you just want a quick and dirty estimation:
Code:
d=$(diff <(echo "$1" |sed 's/./&\n/g') <(echo "$2" |sed 's/./&\n/g') |grep -c '^[<>]')
echo $((100-100*d/(${#1}+${#2})))%

This User Gave Thanks to binlib For This Post:
SkySmart
 

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LEARN ABOUT X11R4

zcmp

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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