From: tapio.a@bac.fi.inv   
      
   I found this batch somewhere on internet, when I try to find batch, what can   
   replace spaces with underscores. Batch not work and I can't figure, why is   
   not work. Can someone fix thist batch?;   
      
   @echo off   
      
   REM Instructions   
   REM This script repaces spaces from file names with underscores.   
   REM If you want to just remove the spaces uncomment lines 30 and 52 and   
   comment out the lines 29 and 51.   
   REM set the following parameters.   
   REM pb is the folder containing the files we want to rename (fullpath)   
   REM tm is a temporary folder that will be created and deleted. Just put a   
   folder that does not exist and is not used by anything else (fullpath).   
   REM all is the file type you want to raname. E.g. *.* for every file, *.txt   
   for TXTs, *.pdf for PDFs etc   
   REM you don't have to change anything else   
      
   set pb=   
   set tm=   
   set all=*.*   
      
   set pa=%pb%%all%   
      
   setlocal EnableDelayedExpansion   
      
   cd /d %pa%   
      
   set /a count=1   
      
   if not exist %tm% mkdir %tm%   
      
   for /f %%F in (%pa%) do (   
      
       set name=%%~nF   
       set name2=!name: =_!   
       REM set name2=!name: =!   
       set name3=!name2!%%~xF   
      
       if !name2! == %%~nF (   
           move /y %%~dpF\!name3! %tm%\ >nul   
       ) else (   
               if not exist %%~dpF\!name3! (   
                   if not exist %tm%\!name3! (   
                       ren "%%F" "!name3!"   
                       move /y %%~dpF\!name3! %tm%\ >nul   
                   )   
           )   
       )   
      
   )   
      
   :rename   
      
   for /f %%F in (%pa%) do (   
      
       set name=%%~nF   
       set name2=!name: =_!   
       REM set name2=!name: =!   
       set name4=!name2!%count%   
       set name3=!name4!%%~xF   
      
       if !name2! == %%~nF (   
           move /y %%~dpF\!name3! %tm%\ >nul   
       ) else (   
               if not exist %%~dpF\!name3! (   
                   if not exist %tm%\!name3! (   
                       ren "%%F" "!name3!"   
                       move /y %%~dpF\!name3! %tm%\ >nul   
                   )   
           )   
       )   
      
   )   
      
   set /a count = %count% + 1   
      
   set /a loop = 0   
      
   for %%F in (%pa%) do (set /a loop = 1)   
      
   if %loop% equ 1 goto rename   
      
   move /y %tm%\%all% %pb% >nul   
      
   rmdir /s /q %tm%   
      
   --- SoupGate-Win32 v1.05   
    * Origin: you cannot sedate... all the things you hate (1:229/2)