How to remove a substring via batch command

Here is a tip to remove a substring via batch command

For example:

If I'd like to remove file extension name 

from Install .wim

to Install

We can try below command:

Test.cmd

SET WINPE=%1 echo %WINPE% SET WINPE=%WINPE:.wim=% echo %WINPE%

Input:

Test.cmd Install.wim

Output:

Install

REF:

http://www.dostips.com/DtTipsStringManipulation.php