units(1) on FreeBSD
The text 0aff9d9f9508, as FreeBSD 11.0-RELEASE shipped it.
conversion program
Flags it lists
-
--exponential -
--file -
--help -
--historyfile -
--output-format -
--quiet -
--terse -
--unitsfile -
--verbose -
--version -
-H -
-U -
-V -
-e -
-f -
-h -
-o -
-q -
-t -
-v