onoff

#!/usr/bin/bash
#
# Name: /usr/sbin/onoff
#
# This script makes the functionality removed by systemd 258~rc1-1,
# init 0 to init 6, available again to the user in a running system.

if [ $# -ne 1 ]; then
	echo "Only one option is permitted." && exit 1
fi

case  "${1}" in
	-h|--help)
		echo "This script makes the functionality removed by systemd 258~rc1-1,"
		echo "init 0 to init 6, available again to the user in a running system."
		echo "Only one digit between 0 and 6 is permitted as an option."
	;;
	0)
		systemctl poweroff
	;;
	1)
		systemctl isolate emergency.target
	;;
	2)
		systemctl isolate rescue.target
	;;
	3|4)
		systemctl isolate multi-user.target
	;;
	5)
		systemctl isolate graphical.target
	;;
	6)
		systemctl reboot
	;;
	*)
		echo "Error: >${1}< is not a valid option" && exit 1
	;;
esac
exit 0