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Top Forums Shell Programming and Scripting Help with displaying difference between two arrays (Bash) Post 302583191 by Chubler_XL on Monday 19th of December 2011 10:49:29 PM
Old 12-19-2011
Rather that calculating md5sum sums on your files, why not use diff -q this is much more efficient as it can stop reading in the files as soon as it finds a byte different (or if the file sizes are not equal it can report that they vary without reading a thing).
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MINCDIFF(1)							 MINC User's Guide						       MINCDIFF(1)

NAME
mincdiff - report differences between minc files SYNOPSIS
mincdiff [-header|-body] [-l] [diff options] file1 file2 DESCRIPTION
The mincdiff shell script compares two minc files by running diff(1) on the headers of the two minc files, and cmp(1) on the image vari- able. You can view only the header differences using -header or only the body (image variable) differences using -body. The option -l is passed on to cmp of the image variable. Any unrecognized options (e.g. -u) are passed verbatim to the diff of the headers. OPTIONS
-header Compare only the headers of the two files. -body Compare only the image data of the two files. -l Print the byte offset in decimal and the byte value in octal for each difference encountered in the image variable. AUTHOR
Peter Neelin COPYRIGHTS
Copyright (C) 1993 by Peter Neelin SEE ALSO
diff(1), cmp(1). $Date: 2004-05-20 21:52:08 $ MINCDIFF(1)
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