disper(1) on Linux
The text ed9d9e967962, as Debian 7 (Wheezy) shipped it.
on-the-fly display switcher
Flags it lists
-
--cycle-stages -
--direction -
--displays -
--help -
--plugins -
--quiet -
--resolution -
--scaling -
--verbose -
--version -
-d -
-h -
-q -
-r -
-t -
-v