How to remove the first 4 characters in a filename on Windows?

Question

Windows

In Linux, you can do this without any problems using the command . But how to do it in Windows?
rename 's/^.....//' files*

Answer 1

I asked myself, I found it.
@echo off
setlocal
set "folder=C:\ftp\rpo"
set "number=7"
pushd "%folder%"
for /f "delims=" %%i in ('2^>nul dir/ad/b' ) do (
set name=%%~ni
2>nul cmd/v/c ren "%%i" "!name:~%number%!%%~xi"
)
popd
endloca
might come in handy.

Answer 2

The same is possible in Windows. There is an operation to replace and take a substring in the set command. See set /?
Loop through the files, in each name we delete the necessary characters, then ren with a new name.