等同于* input *的`tee`命令？ [英] `tee` command equivalent for *input*?

问题描述

unix tee 命令将标准输入拆分为stdout和一个文件。

The unix tee command splits the standard input to stdout AND a file.

我需要的是另一种方法，将多个输入合并为一个输出-我需要将两个（或更多）命令的标准输出串联起来。 >
不确定该应用程序的语义是什么-我们假设每个参数都是一个完整的命令。

What I need is something that works the other way around, merging several inputs to one output - I need to concatenate the stdout of two (or more) commands.
Not sure what the semantics of this app should be - let's suppose each argument is a complete command.

示例：

>  eet "echo 1" "echo 2" > file.txt

应生成一个包含内容的文件

should generate a file that has contents

1
2

我尝试过

>  echo 1 && echo 2 > zz.txt

它不起作用。

旁注：我知道我可以将每个命令的输出附加到文件中，但是我想一口气做到这一点（实际上，我想将合并的输出通过管道传输到另一个程序）。

另外，我可以自己滚动，但只要有能力我就懒惰：-）

Side note: I know I could just append the outputs of each command to the file, but I want to do this in one go (actually, I want to pipe the merged outputs to another program).
Also, I could roll my own, but I'm lazy whenever I can afford it :-)

哦，是的，如果它可以在Windows中运行，那就太好了（尽管我猜想有任何bash / linux风格的解决方案都可以通过UnxUtils / msys / etc来工作）

Oh yeah, and it would be nice if it worked in Windows (although I guess any bash/linux-flavored solution works, via UnxUtils/msys/etc)

推荐答案

尝试

( echo 1; echo 2 ) > file.txt

生成一个子shell并在那里执行命令

That spawn a subshell and executes the commands there

{ echo 1; echo 2; } > file.txt

。那不会产生子shell（最后一个命令后的分号很重要）

is possible, too. That does not spawn a subshell (the semicolon after the last command is important)

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