There are several libraries available to help with command line argument processing.
有一些库可以用来帮助进行命令行参数处理。
To stop the tail -f command, use Ctrl + C to break the processing.
要停止tail-f命令，使用Ctrl +C来中止进程。
The listener and command processing are done on separate threads.
侦听器和命令处理单独的线程上执行。
The listener and command processing are done on separate threads.
侦听器和命令处理单独的线程上执行。
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