created shell dir

shell/getopts.sh

@@ -0,0 +1,15 @@
+#!/bin/bash
+
+while getopts a:b:cd param;
+do
+    case $param in
+        a) echo "parameter 'a' with argument: $OPTARG"
+            ;;
+        b) echo "parameter 'b' selected with argument: $OPTARG"
+            ;;
+        c) echo "parameter 'c' selected (no colon, no argument)"
+            ;;
+        d) echo "parameter 'd' selected"
+            ;;
+    esac
+done