在我们对Linux系统进行探索的过程中，你还会注意到操作系统的很多属性是由shell脚本控制的---在Linux系统中，是不存在任何秘密的。
You will also notice during our adventure that many features of the operating system are controlled by shell scripts. In Linux, there are no secrets!
将秘密语置于我们简单的服务器端脚本中使得从服务器接收信息需要花费时间。
Posting the secret phrase to our simple server side script and then receiving the information back takes time.
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