mtree(8) on FreeBSD
The text f3d7f8151ef5, as FreeBSD 8.3-RELEASE shipped it.
map a directory hierarchy
Flags it lists
-
-K -
-L -
-P -
-U -
-X -
-c -
-d -
-e -
-f -
-i -
-k -
-n -
-p -
-q -
-r -
-s -
-u -
-w -
-x