while getopts "H:P:u:p:" Input;
do
        case ${Input} in
        H)      host=${OPTARG};;
        P)      port=${OPTARG};;
        u)      user=${OPTARG};;
        p)      password=${OPTARG};;
        \?)     echo "Wrong option given. Please use options -H for host, -P for port, -u for user and -p for password"
                exit 1
                ;;
        esac
done