gnome-screensaver-command --version (return code: 0)
gnome-screensaver-command 3.6.1
gnome-screensaver-command --help (return code: 0)
Usage:
gnome-screensaver-command [OPTION...]
Help Options:
-h, --help Show help options
Application Options:
--exit Causes the screensaver to exit gracefully
-q, --query Query the state of the screensaver
-t, --time Query the length of time the screensaver has been active
-l, --lock Tells the running screensaver process to lock the screen immediately
-a, --activate Turn the screensaver on (blank the screen)
-d, --deactivate If the screensaver is active then deactivate it (un-blank the screen)
-V, --version Version of this application