# getopt
snippet getopt
  CMD=$${0:0}
  function usage ()
  {
    echo "Usage :  $CMD [options] [--]
	    Options:
      --debug         Debug mode
      --log-level=*   Set Log Level
      -h        Display this message"
	}
  LOG_LEVEL=0
  DEBUG=false
  while getopts ":h-:" opt
	do
    case "${opt}" in
    -)
      case "${OPTARG}" in
        debug)
          DEBUG=true
          ;;
        loglevel=*)
          val=${OPTARG#*=}
          opt=${OPTARG%=$val}
          echo "${opt} is set to: ${val}"
          ;;
        *)
          echo "Unknown option --${OPTARG}"
          ;;
      esac;;
    h)  usage; exit 0   ;;
    *)  echo -e "\n  option does not exist : $OPTARG\n"
        usage; exit 1   ;;
	  esac
	done
	shift $(($OPTIND-1))