从链接应用程序中间检查标准输出
考虑这个示例链：
cat foo.txt | grep -v foo | grep -v bar | grep -v baz
我想检查第二个 grep 的内容 stdout 以及生成的 stdout：
cat foo.txt | grep -v foo | grep -v bar | UNKNOWN | grep -v baz
所以我需要一个未知的工具，例如将 stdout 的内容转储到文件中，并将 stdout 沿着链。
该工具（未知）是否存在（Windows 和 Linux 答案都相关）？
Consider this example chain:
cat foo.txt | grep -v foo | grep -v bar | grep -v baz
I'd like to inspect the contents stdout of the second grep as well as the resulting stdout:
cat foo.txt | grep -v foo | grep -v bar | UNKNOWN | grep -v baz
So I need a tool, UNKNOWN, that for instance dumps the contents of stdout to a file and also passes stdout along the chain.
Does the tool, UNKNOWN, exists (both Windows and Linux answers are relevant) ?
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评论（2）
我认为有一种叫做“Tee”的东西可以给你这样的感觉。
更新反映鲍勃的评论：
猫 foo.txt | grep -v foo | grep -v foo | grep -v foo | grep -v foo | grep -v foo | grep grep -v 栏 | tee -a 检查.txt | grep -v 巴兹
I think there's a thing call 'tee' that gives you that.
Update reflecting comment from Bob:
cat foo.txt | grep -v foo | grep -v bar | tee -a inspection.txt | grep -v baz
无法尝试，但就像 Gabriel 和 Bob 指出的那样，命令 $ tee (man tee) 会帮助你的。 tee 命令将接受输入并将其回显到标准输出以及文件。正如 Bob 在他的评论中所说：
将从 grep -v bar 获取输出并将其放入 stdout 以及 Inspection.txt。 -a 标志使其附加到检查中，而不是创建一个全新的文件。
Unable to give it a shot, but like Gabriel and Bob pointed out, the command $ tee (man tee) will help you out. The tee command will take input and echo it to stdout, as well as files. As Bob said in his comment:
Will take the output from
grep -v barand put it to stdout, as well as inspection.txt. The -a flag causes it to append to inspection rather than create a whole new file.