将char转换为小写批处理

我在尝试将Windows路径转换为cygwin样式的linux路径时遇到了问题。例如，C：\ path \ to \ file将会是/ cygdrive/c/path/to/file。除了将从路径中拉出的大写驱动器号转换为小写字母之外，我有所有工作。链接大家给出了这些问题是：将char转换为小写批处理

http://www.robvanderwoude.com/battech_convertcase.php

和下环“SET，以两个”似乎是最合适的。这是我到目前为止有：

@ECHO OFF 
SETLOCAL ENABLEDELAYEDEXPANSION 

SET CWRSYNCHOME=%~dp0 

echo the windows path is %CWRSYNCHOME% 
for /f "tokens=1,2 delims=:" %%a in ("%CWRSYNCHOME%") do (
set "manip1=%%a" 
set "manip2=%%b" 
echo starts as /cygdrive/!manip1!!manip2:\=/! 
FOR %%i IN ("A=a" "B=b" "C=c" "D=d" "E=e" "F=f" "G=g" "H=h" "I=i" "J=j" "K=k" "L=l" "M=m" "N=n" "O=o" "P=p" "Q=q" "R=r" "S=s" "T=t" "U=u" "V=v" "W=w" "X=x" "Y=y" "Z=z") DO SET "manip1=%manip1:!%%i!%"&echo doing: "manip1=%manip1:!%%i!%"&echo now its !manip1! 
set "CYGLIKEHOME=/cygdrive/!manip1!!manip2:\=/!" 
) 
echo the converted path is %CYGLIKEHOME% 
PAUSE 
GOTO :EOF

我得到的输出是：

the windows path is E:\cwRsync_5.5.0_x86_Free\SANDBOX\ 
starts as /cygdrive/E/cwRsync_5.5.0_x86_Free/SANDBOX/ 
the converted path is /cygdrive/ "manip1=" 
now its "manip1=" 
now its "manip1=" 
now its "manip1=" 
now its "manip1=" 
now its "manip1=" 
now its "manip1=" 
now its "manip1=" 
now its "manip1=" 
now its "manip1=" 
now its "manip1=" 
now its "manip1=" 
now its "manip1=" 
now its /cwRsync_5.5.0_x86_Free/SANDBOX/ 
Press any key to continue . . .

是有更好的方法来转换一个单一字符为小写？如果没有，你们可以在设置CYGLIKEHOME时看到我做错了吗？

谢谢

来源

2016-04-21 Drew

为什么你不使用cygpath的转换？ – matzeri

[这里有一些其他可能的想法]（http://stackoverflow.com/a/34723215/1683264）。 – rojo

!%%i!毫无意义可言。

%manip1:!%%i!%应该!manip1:%%~i!

来源

2016-04-21 18:30:41 Stephan

完美！谢谢。 – Drew

将char转换为小写批处理

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