help func for sass builder

client/build.sh

@@ -14,9 +14,16 @@ build() {
     sass "$sass_dir/$1.scss" "$build_dir/$1.css"
 }
 
+flags() {
+	echo '-b FILE : build css from sass'
+}
+
+if [ -z "$1" ];then
+	flags
+fi
+
 while getopts ":b:" opt; do
     case $opt in
-		b) build;;
+		b) build $2;;
     esac
 done
-#build login