dacsauth(1) on Linux
The text 67e0029afc84, as Debian 8 (Jessie) shipped it.
authentication check
Flags it lists
-
-D -
-aux -
-fj -
-fn -
-h -
-help -
-id -
-ll -
-m -
-modules -
-p -
-pf -
-prompt -
-q -
-r -
-u -
-user -
-v