private function initCommand($param)
    {
        if (!preg_match('/^[a-z]+:[a-z]+$/', $param)) {
            $this->options['command'] = $param;

            return;
        }
        
        $part = explode(':', $param);

        $this->options['command'] = $part[0];

        $this->options['action'] = $part[1];
    }