[Iska]

Упрощение кода на основе идеи коллеги megaloman:

Скрытый текст

Код:

@echo off
setlocal enableextensions enabledelayedexpansion

set sSourceFile=sound.mp3
set /a iCount = 1

if not exist "%sSourceFile%" (
	echo Source file [%sSourceFile%] not found.
	exit /b 1
)

:Repeat
	for %%i in ("%sSourceFile%") do 2>nul ren "%sSourceFile%" "%%~ni!iCount!%%~xi" || (
		set /a iCount += 1
		goto :Repeat
	)

endlocal
exit /b 0