    private function __simple_query($cmd)
    {
        if (!empty($this->__setup['resources'])) {
            $this->__request_object['search'] = $this->__setup['resources'];
        }
        $commandFile = $this->__generateCommandFile();
        $results = shell_exec($cmd . ' --query_data ' . $commandFile);
        unlink($commandFile);
        return $results;
    }