Batch file 将UNC源映射为驱动器

当我从.CMD文件中运行脚本时，%~dp0将获得当前/工作目录。它知道UNC路径。但是，我在三个闪存驱动器、五个不同的便携式驱动器和三个不同的文件服务器上有几个脚本。我希望能够编写一个脚本，在所有脚本上运行

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如何使用脚本查看“%~dp0”，确定是否在UNC源上，如果源是UNC，则映射驱动器，否则只需运行？

您可以使用以下命令检查驱动器是否映射-

net use %~d0 2>nul >nul || echo drive not mapped & goto :run

2>nul>nul

将stdout和stderr重定向到nul

仅当net use命令设置了错误级别时，

|

之后的命令才会运行

如果要检查驱动器是否位于远程服务器上，但未映射，请映射驱动器-

if "%~d0"=="\\" for /f %%D in (R S T U V W X Y Z) do if not exist %%D:\ (
    net use %%D: %~dp0 >nul
    set path=%%D:
    goto :run
)

:run

如果脚本正在远程运行，但路径尚未映射，则

%~d0

将等于

\\

循环通过

R S T U V W X Y Z

（不太可能全部映射-您可以添加/删除字母）检查它们是否已映射。如果没有，请将路径映射到该驱动器号，然后继续执行脚本

@echo off
    setlocal enableextensions

    ( call :ensureMappedRun %* )|| exit /b 

    rem This line is reached when :ensureMappedRun finishes with errorlevel=0
    rem meaning the batch file is not being executed from a UNC path

    echo running "%~f0" %*
    pause

    endlocal
    exit /b 0

:ensureMappedRun
    rem test if current context is "drive:...."
    echo %~f0 | findstr /r /i /b /c:"[a-z]:" >nul 2>nul
    if not errorlevel 1 exit /b 0

    rem Running from UNC path. Map to drive letter
    pushd "\\%~p0"
    if errorlevel 1 (
        echo ERROR : UNC path not accesible or no drive letters available
        pause
        exit
    )

    rem Restart the current batch file from the new drive\path
    call "%cd%\%~nx0" %*

    rem Clean the drive assignment
    popd

    rem And return, signaling the batch has been run redirected
    exit /b 1