cmd 中没有 $ 操作符.
重定向运算符(、>、>>>)需要文件或流句柄.
管道 | 将命令的标准输出传递到另一个命令的标准输入.

There is no $ operator in cmd.
Redirection operators (<, >, >>) expect files or stream handles.
A pipe | passes the standard output of a command into the standard input of another one.

A for/F 循环 但是能够捕获命令的输出并将其提供在变量引用中(在示例中为 %A)；看下面的代码:

A for /F loop however is capable of capturing the output of a command and providing it in a variable reference (%A in the example); see the following code:

for /F "usebackq delims=" %A in (`git status -s -b ^| sed -n '2p' ^| cut -d' ' -f2-`) do git diff %A