1 files changed, 44 insertions, 0 deletions
diff --git a/bash_experiments/cmd_options.sh b/bash_experiments/cmd_options.sh
new file mode 100755
index 0000000..e1b5656
--- /dev/null
+++ b/bash_experiments/cmd_options.sh
@@ -0,0 +1,44 @@
+#!/bin/bash
+
+echo $0
+echo $1
+
+Help() {
+   echo "Add description of the script functions here."
+   echo
+   echo "Syntax: scriptTemplate [-g|h|v|V]"
+   echo "options:"
+   echo "g     Print the GPL license notification."
+   echo "h     Print this Help."
+   echo "v     Verbose mode."
+   echo "V     Print software version and exit."
+   echo
+}
+
+Name=World
+
+#
+#  The while-done structure defines a loop that executes once for each option
+# in the getopts - option structure. The ":h" string - which requires the quotes
+# - lists the possible input options that will be evaluated by the case - esac
+# structure. Each option listed must have a corresponding stanza in the case statement.
+# exit;; exits from the program without executing any more code even if some
+# exists. The option processing loop is also terminated, so no additional
+# options would be checked
+while getopts ":hn:" option; do
+
+	case $option in
+		h) # display Help
+			Help
+			exit;;
+		n) # Enter a name
+			Name=$OPTARG;;
+		\?) # invalid option
+			echo "Error: Invalid option"
+			echo $option
+			exit;;
+	esac
+
+done
+
+echo "Hello $Name"