一部を覗いて「.m4a」を削除する

autoremove.bat

@echo off
cd /d %~dp0
setlocal enabledelayedexpansion

for /f "usebackq delims=" %%i in (`dir /B /S *.m4a`) do (
    echo ----------------------------------------------------
    echo %%i
    echo.
    
    del %%i
    echo ----------------------------------------------------
)
echo.
pause
exit /b 0