I found this code particularly useful and elegant. The use of the find command with the subroutine really made a hard task easy. I did not use all of it, but there are definitely some nice things happening here.
I found one reason to use this type of thing instead of chown/chgrp/chmod is because this is more portable. As long as perl is installed this script will work where as the chown/chgrp/chmod commands may not be on every system that runs perl. This allows me to only require perl for my users.
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