eval set -- "$O"
while true; do
case "$1" in
- -c|--camera) PARAMS="$PARAMS --ei camera $2"; shift 2;;
+ -c|--camera) PARAMS="$PARAMS --es camera $2"; shift 2;;
-h|--help) show_usage; exit 0;;
-s|--size) PARAMS="$PARAMS --ei size_index $2"; shift 2;;
--) shift; break;;
esac
done
+if [ $# != 1 ]; then show_usage; exit 1; fi
+
touch $1
PARAMS="$PARAMS --es file `realpath $1`"