A utility script I wrote in 2008 and eventually gets copied over in backups that I restore, despite being 7 or 8 systems ago. "dedupe.php" It very slowly and i

A utility script I wrote in 2008 and eventually gets copied over in backups that I restore, despite being 7 or 8 systems ago. "dedupe.php" It very slowly and inefficiently compares hashes of files in its directory (and subdirectories) and deletes duplicates. I don't think I've actually used it in years, but it invariably gets restored along with some old family photos that happened to be in the directory it lived in. Ironically it is older than any of the files remaining there.