http://www.perlmonks.org?node_id=170749


in reply to Files owned in a filesystem

That should be lstat instead of stat, or else you'll count a symlinked file's size multiple times.

And actually, you should use (lstat)[12], which accounts properly for holey files and indirect blocks, to give you a number like du instead of like adding up a bunch of ls -l values.

-- Randal L. Schwartz, Perl hacker