pipe operator

Better yet, the pipe operator assembles ad hoc programs right at the command line.

更好的是，管道操作符可以在命令行上组装出专门的程序。

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Stdin can also come from the standard output of another program, using the"|"( pipe) operator of the shell, as follows

使用shell操作符“”（pipe）也可以使标准输入来自另一个程序的标准输出，如下所示

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The other common operator for redirecting the standard streams is the| ( pipe) operator, which connects the standard output stream of the program on the left hand side to the standard input stream of the program on the right.

另一个常用于重定向标准流的操作符是（管道）操作符，它可以将左侧程序的标准输出流连接到右侧程序的标准输入流。

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