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[Omaha.pm] Challenge: Prune a directory tree




Just for fun...

I have a big, deep directory tree. Some directories contain files, some don't.

I want to prune out all the directories for which there are no files in that directory, or any sub-directory thereof. Every directory contains zero or more sub-directories.

After the solution runs, all the files should remain, untouched and unmoved. All empty directory branches should be gone.

Clear as mud? I failed to Google a solution in 5 minutes.

Any takers? If not maybe we'll hit it for the Perl Monger mtg next Thr. -grin-

j
Omaha Perl Mongers: http://omaha.pm.org