dacsauth(1) on Linux
The text e1d3c8960eb8, as Debian 7 (Wheezy) 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