Show the command's usage when no arguments are provided.

scripts/ybcon.sh

@@ -24,8 +24,9 @@ newArgs() {
   fi
 }
 
-for it in "$@"
+if [ "$#" != 0  ]; then
-do
+  for it in "$@"
+  do
     case "$it" in
       -h | --help )
         echo "Usage:"
@@ -41,7 +42,10 @@ do
       * )
         usage ;;
     esac
-done
+  done
+else
+  usage
+fi
 
 runIt() { eval "$1" " $args"; }