Scalr\System\Zmq\Cron\Launcher::getStartWorkerCommand PHP Метод

    public static function getStartWorkerCommand()
    {
        return self::getStartPhpScriptCommand('/cron/worker.php');
    }

 /**
  * {@inheritdoc}
  * @see \Scalr\System\Zmq\Cron\TaskInterface::addWorker()
  */
 public function addWorker($address = null)
 {
     $op = [];
     $config = $this->config();
     $args = '--name=' . ($address ?: $this->name);
     exec(Launcher::getStartWorkerCommand() . ' ' . $args . ' ' . ($config->log == '/dev/null' ? '>' : '>>') . ' ' . escapeshellcmd($config->log) . ' 2>&1 & echo $!', $op);
     $this->getLogger()->debug("Adding %s worker PID:%d", $address ?: $this->name, intval($op[0]));
     return intval($op[0]);
 }