public function run()
    {
        $this->setUserAndGroup();

        $out = $this->out;
        $err = $this->err;
        $process = new \Symfony\Component\Process\Process($this->cmd, null, null, null, null);
        $process->run(function ($type, $buffer) use ($out, $err) {
            if ($type == \Symfony\Component\Process\Process::ERR) {
                $err->error($buffer);
            } else {
                $out->info($buffer);
            }
        });
    }