1.So you could do something like grep foobar in MCD, it's there.

所以你可以在 MCD 中执行类似 grep foobar 的操作，它就在那里。机翻

2.So now it looks like nothing happened, but now the MCD function has been defined in our shell.

所以现在看起来好像什么也没发生，但现在 MCD 经在我的 shell 中定。机翻

3.Here, for example, we're calling the MCD function.

如，我在这里调用 MCD 。机翻

4.So now for example let's look at MCD and it has the comment that we were looking for.

现在让我看看 MCD，它有我正在寻找的评论。机翻

5.So we can now for example do MCD test, and now we move from the tools directory to the test directory.

因此，我现在可以进行 MCD 测试，现在我从工具目录移动到测试目录。机翻

6.Here we have the MCD function, that has been defined, and the thing is so far, we have just kind of seen how to execute several commands by piping into them, kind of saw that briefly yesterday.

这里我经定 MCD ，到目前为止，我刚刚看到如何通过管道输入多个命令来执行它，昨天简单地看到这一点。机翻