public static function run()
    {
        if ($_SERVER['argc'] < 2) {
            self::helpAction();
            exit();
        }
        $method = $_SERVER['argv'][1] . 'Action';
        if (method_exists(static::getCurrentClass(), $method)) {
            $params = $_SERVER['argv'];
            array_shift($params);
            array_shift($params);
            call_user_func_array(array(static::getCurrentClass(), $method), $params);
        } else {
            self::displayError("command unknown", true);
        }
    }