pw(8) on FreeBSD
The text c36517d39f0e, as FreeBSD 10.4-RELEASE shipped it.
create, remove, modify & display system users and groups
Flags it lists
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-C -
-D -
-G -
-H -
-L -
-M -
-N -
-R -
-V -
-Y -
-b -
-c -
-d -
-e -
-g -
-h -
-k -
-l -
-m -
-p -
-q -
-r -
-s -
-u -
-w -
-y