[Beowulf] dedupe filesystem

[Michael Di Domenico]

does anyone have an opinion on dedup'ing files on a filesystem, but
not in the context of backups?  I did a google search for a program,
but only seemed to find the big players in the context of backups and
block levels.  i just need a file level check and report.

Is scanning the filesystem and md5'ing the files really the best (or
only) way to do this?