Windows上的readlink的本机替代品 [英] Native alternative for readlink on Windows

问题描述

Windows 本地的替代版本是mklink.

Windows native alternative for ln -s is mklink.

readlink是否有任何本机替代品?还是如何原生识别文件是否为符号链接?

Is there any native alternative for readlink? Or how to natively identify if the file is symlink?

推荐答案

我不相信有任何直接与readlink等效的工具.但是，您可以在dir的输出中看到某个项目是否为符号链接，因此仍可以从命令行或脚本中确定该项目.

I don't believe there's any tool directly equivalent to readlink. But you can see in the output of dir whether an item is a symlink or not, so you can still determine this from the command line or in a script.

您可以使用以下语法轻松测试给定文件是否为符号链接:

You can pretty easily test whether a given file is a symlink using syntax like:

 dir mysymlink  | find "<SYMLINK>" >NUL
 if not errorlevel 1  echo. It's a symlink!

在找到"<SYMLINK>"的情况下，错误级别将为0，否则将为1.

Errorlevel will be 0 in the case that "<SYMLINK>" is found, and will be 1 otherwise.

确定符号链接的实际目标是另一回事，在我看来并不是那么简单. dir mysymlink | find "<SYMLINK>"的输出可能看起来像

Determining the actual target of the symlink is another matter, and in my opinion not as straight-forward. The output of dir mysymlink | find "<SYMLINK>" might look like

11/13/2012  12:53 AM    <SYMLINK>      mysymlink [C:\Windows\Temp\somefile.txt]

您可以对此进行解析，但是某些字符使得很难在一个变量中处理所有字符，因此我发现处理临时文件更容易:

You can parse this, but some of the characters make it difficult to deal with all in one variable, so I found it easier to deal with a temporary file:

 dir mysymlink | find "<SYMLINK>" > temp.txt
 for /f "tokens=6" %i in (temp.txt) do @echo %i

这将产生类似于[C:\Windows\Temp\somefile.txt]的输出. (请记住在任何批处理脚本中都使用%%i；以上内容来自命令提示符.)

This yields output like [C:\Windows\Temp\somefile.txt]. (Remember to use %%i within any batch scripts; the above is from the command prompt.)

要获得不带括号的结果，您可以执行以下操作:

To get the result without the brackets, you can do something like:

 dir mysymlink | find "<SYMLINK>" > temp.txt
 for /f "tokens=6" %i in (temp.txt) do set answer=%i
 echo %answer:~1,-1%

变量%answer%包含带括号的结果，因此%answer:~1,-1%是不带第一个或最后一个字符的结果.

The variable %answer% contains the result with the brackets, so %answer:~1,-1% is the result without the first or the last character.

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