Du
From FreeBSDwiki
du is acronymic for disk usage
When this command is called with no parameters, it will display the amount of disk space used by each file and directory under the current working directory (see pwd).
Common flags
-d -- used with a number to specify how many levels deep to search -h -- use unit suffixes for sizes so as to make them human-readable
Example usage
[light@splat ~/www/paint_fx]$ du 484 ./Graphics 522 .
[light@splat ~/www/paint_fx]$ du -d 0 522 .
[light@splat ~/www/paint_fx]$ du -h 484K ./Graphics 522K .
