xscreensaver-command(1) on Linux
The text 75ed69d68c68, as Debian 9 (Stretch) shipped it.
control a running xscreensaver process
Flags it lists
-
-activate -
-cycle -
-deactivate -
-demo -
-exit -
-help -
-lock -
-next -
-prefs -
-prev -
-restart -
-select -
-time -
-version -
-watch