xlock(1) on Linux
The text b2161f1f57bb, as Debian 3.1 (Sarge) shipped it.
Locks the local X display until a password is entered.
Flags it lists
-
-automatic -
-frametime -
-help -
-line_length -
-randomstart -
-resources -
-spectator -
-speed -
-spin -
-version -
-viewmodel -
-xcldebug