@echo off

setlocal ENABLEDELAYEDEXPANSION

set path=%~dp0

set filename=!path!mp3.tmp

if "%1" equ "" (

echo ERROR_NO_PARAMETER

goto finished

)

set rand_switch=0

if "%2" equ "rand-on" (

set rand_switch=1

)

pushd %1 0>NUL 1>NUL 2>NUL

if ERRORLEVEL 1 (

echo can't find %1 folder

goto finished

)

dir /b /s *.mp3>!filename!

set cnt=10

:go

if !cnt! lss 100 (

if !rand_switch! equ 1 (

if exist !path!rearrange_file.exe (

!path!rearrange_file.exe !filename!

)

)

for /f "delims=" %%i in (!filename!) do (

copy %%i !path!\!cnt!.mp3

set /a cnt=!cnt!+1

if !cnt! geq 100 goto finished

)

goto go

)

:finished

if exist !filename! del !filename!

popd

pause