@echo off&setlocal enabledelayedexpansion
for /f "delims=" %%i in ('dir /b/s/a-d c:\rm\*.rm') do (
       set str=%%~nxi
       call :lp "%%~ni"
       if not exist "%%~dpi!str!" ren "%%i" "!str!"
       )
pause&exit
:lp
for /f "tokens=1* delims=0123456789" %%i in (%1) do (
    if "%%i"=="" goto :eof
    set str=!str:%%i=!
    call:lp "%%j"
)
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@echo off
for /f "delims=" %%a in ('dir /a-d/s/b *.rm^|findstr /ie "\.rm"') do (
    set str=%%a
    setlocal EnableDelayedExpansion
    call :check
    for %%i in (!NaN!) do echo ren "!str!" "!str:~-%%i!"
    endlocal 
)
pause&exit/b
:check
for /l %%i in (4 1 260) do (
    if "!str:~-%%i,1!" lss "0" (goto :eof) else if "!str:~-%%i,1!" gtr "9" goto :eof
    set NaN=%%i
)
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@echo off
for /f "delims=" %%a in ('dir /a-d/s/b *.rm^|findstr /ie "[0-9]\.rm"') do (
    set strFullName=%%a&set strName=%%~nxa
    setlocal enabledelayedexpansion
    call :lp
    echo ren "!strFullName!" "!strName!"
    endlocal
)
pause&exit/b
:lp
for /f "tokens=1* delims=0123456789" %%a in ("!strName!") do (
    if not "%%b"=="" set strName=!strName:*%%a=!&goto lp
)
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