while [ $# -ne 0 ]; do
case $1 in
-e) OPERATION="configure"
- shift;
+ shift;
;;
-d) OPERATION="deconfigure"
shift;
-s) OPERATION="size"
shift;
;;
+ -h | --help | --usage) OPERATION="usage"
+ shift;
+ ;;
+ *) OPERATION="usage"
+ shift;
+ ;;
esac
done
}