public function execute($command_name)
    {
        // Find it
        if (!($command = Command::find($command_name))) {
            App::abort(404);
        }

        // Run it, ignoring all output
        set_time_limit(self::MAX_EXECUTION_TIME);
        ob_start();
        Artisan::call($command->getName());
        ob_end_clean();

        // Return response
        return Response::json('ok');
    }