+PN="$0"
+
+if [ -r /etc/grml/script-functions ] ; then
+ . /etc/grml/script-functions
+ if [ -x /usr/bin/X ] ; then
+ check4progs vlock xlock sudo chpasswd dialog || { echo "Sorry, can't continue. Exiting.">&2 ; exit 1 }
+ else
+ check4progs vlock sudo chpasswd dialog || { echo "Sorry, can't continue. Exiting.">&2 ; exit 1 }
+ fi
+fi