With just a few keystrokes — including a pipe (|) or redirection — you can create an impromptu data processing machine more powerful than the sum of its parts.
只需要输入相应的内容，包括管道(|)或重定向，您就可以创建即兴的数据处理器，从而实现比将其中的这些部分简单地加在一起更强大的功能。
Changing the source and destination of a process's data is referred to as redirection.
更改进程数据的源和目标被称为重定向。
With just a few keystrokes and a bit of syntactic glue, including pipes (|), tee, and redirection, you can assemble your own impromptu data transforms at each shell prompt.
只需按一些键并使用一些句法粘结剂，包括管道(|)、tee和重定向，您就可以在Shell提示符中即兴组装自己的数据转换器。
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