But that's what 'diff -r' does: compares the contents of two directory structures and reports any differences between the files, or files in one structure that are missing in the other. If you just want to know what files are different, without seeing the lines on which they are different, add the '-q' or '--brief' option.

Aaron B.
My Woefully Neglected Blog, where I occasionally mention Perl.

In reply to Re^5: Bitwise comparision of files by aaron_baugher
in thread Bitwise comparision of files by kelly

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