ScriptDefineParamWithHelpFunction

sh

#!/bin/bash

helpFunction()
{
   echo ""
   echo "Usage: $0 -d DOMAIN -n NAME"
   echo "\t-d Root domain"
   echo "\t-n Name/subdomain"
   exit 1 # Exit script after printing help
}

while getopts ":d:n:" opt;
do
   case "$opt" in
      d ) DOMAIN="$OPTARG";;
      n ) NAME="$OPTARG";;
      ? ) helpFunction ;; # Print helpFunction in case parameter is non-existent
   esac
done

# Print helpFunction in case parameters are empty
if [ -z "$DOMAIN" ] || [ -z "$NAME" ]
then
   echo "Missing params";
   helpFunction
fi