Rename files and remove prefix through batch file

This isn't precisely a batch file, but ....  Here's a quick vb script that should do the trick, just create a file with a vbs extension (create a text file and rename it to a .vbs) copy the code below and run it.

One last thing, this will only work if the only files in the C:\Temp directory are the ones that you have mentioned and will not recursive do sub folders.  So make a backup of your C:\Temp directory and delete all other files but the type you mentioned.  Hope this helps:

Dim fso, fold, f
Set fso = CreateObject("Scripting.FileSystemObject")
Set fold = fso.GetFolder("C:\Temp")
For Each f In fold.Files
    FileName = Right(f.Name, Len(f.Name) - 1)
    extension = Right(f.Name, Len(f.Name) - InStrRev(f.Name, "."))
    FileName = Left(FileName, InStrRev(FileName, ".") - 1)    
    f.Move f.ParentFolder & "\" & Int(FileName) & "." & extension
Next

Let me know if you need any help

Thanks for your input. However, sorry, should've clarified - I am looking for a DOS batch file.

Thanks,
Graham

Put it in the directory you want to rename files in.
Note: It removes all occurences of U and 0 from the file name
E.g. U002330.dat  => 233.dat

------------- Batch File starts here ------------

@Echo Off

SETLOCAL


For /F "tokens=*" %%I in ('Dir /B %~f1.\*.dat') Do Call :RENAMEFILES %~n1 %%I
GoTo :EOF

:RENAMEFILES

Set FName=%~n1

REM Replace U with <blank>
Set FName=%FName:U=%

REM Replace 0 with <blank>
Set FName=%FName:0=%

Echo %~n1%~x1 Changed To  %Fname%%~x1
Rename %~n1%~x1  %FName%%~x1
GoTo :EOF

avi247,

Thanks for the great script. Could I request one more change before I accept your answer? Because some files will be named:

U000130.dat
U006480.dat
U007120.dat
so on...

trailing zeros should not be removed because U000130.dat is going to be changed to 13.dat however it's really 130.dat and will conflict with U000013.dat.

TIA!

avi247,

Worked beautifully! Actually, the commands did not strip the leading "U" however your two answers provided me with enough information to get the job done.

Graham

Glad it helped :)

This is just an afterthought. I tried something else and it didnt work as great.
Here's the script:

@echo off
:start
For /F "tokens=*" %%I in ('Dir /B U00*.*') Do Call :Ren1 %%I

:Ren1
set name=%%I:~4%
ren %I% %name%

For some reason it only renamed one of the files then it stopped.