To this end, we attach a "tee" (T-shape pipe) that permits two things at the same time: placing the output into a file AND displaying the output into the screen. The plumbing analogy would be.
为达到此目的，我们连接允许两件事同时进行的“ tee ” (t -形管道)：将输出结果放在文件中同时将输出结果显示在屏幕上。
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The tee command functions as a T-pipe, taking its input (the output from the mainframe) and sending it to the next command as well as a file called tap.