du(1) on FreeBSD
The text c36b2e619c28, as FreeBSD 7.1-RELEASE shipped it.
display disk usage statistics
Flags it lists
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-H -
-I -
-L -
-P -
-a -
-c -
-d -
-h -
-k -
-m -
-n -
-r -
-s -
-x