du(1) on FreeBSD
The text ce73a7d15d4d, as FreeBSD 10.1-RELEASE shipped it.
display disk usage statistics
Flags it lists
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-A -
-B -
-H -
-I -
-L -
-P -
-a -
-c -
-d -
-g -
-h -
-k -
-l -
-m -
-n -
-r -
-s -
-t -
-x