Graphical Environments & Desktops • howto start xscreensaver from commandline ?

Code:

#!/usr/bin/env bashpidof xscreensaver && { echo "xscreensaver already running, exit" exit 1; }xscreensaver &                               ### run xscreensaver in the backgrounddeclare -i XSSPID=$?                         ### xscreensaver PIDsleep 1                                      ### wait xscreensaver initialisationxscreensaver-command --lock                  ### lock the screenwhile IFS='' read -r STATE; do               ### wait unlock   [[ "$STATE" == UNBLANK\ * ]] && breakdone < <(xscreensaver-command --watch)kill $XSSPID                                 ### kill xscreensaver PID