如何在单个命令中不带反斜杠的情况下获取批处理脚本的路径? [英] How to get the path of a batch script without the trailing backslash in a single command?

问题描述

假设我希望从批处理脚本本身中获取批处理脚本的绝对路径，但不要在其后加反斜杠.通常，我是这样进行的:

Suppose I wish to get the absolute path of a batch script from within the batch script itself, but without a trailing backslash. Normally, I do it this way:

SET BuildDir=%~dp0
SET BuildDir=%BuildDir:~0,-1%

第一个语句获取带有尾部反斜杠的路径，第二行删除最后一个字符，即反斜杠.有没有办法将这两个语句合并为一行代码?

The first statement gets the path with the trailing backslash and the second line removes the last character, i.e. the backslash. Is there a way to combine these two statements into a single line of code?

推荐答案

在许多软件上，添加尾随点在语义上是等效的，而不是删除尾随反斜杠.

Instead of removing the trailing backslash, adding a trailing dot is semantically equivalent for many software.

C:\ Windows 等同于 C:\ Windows \.

C:\Windows is equivalent to C:\Windows\.

echo %dp0
>C:\Windows\

echo %dp0.
>C:\Windows\.

例如，robocopy仅接受没有尾随空格的目录.

此错误提示:

For example, robocopy accepts only directories without trailing spaces.

This errors out:

robocopy "C:\myDir" %~dp0 

这是成功的:

robocopy "C:\myDir" %~dp0.

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