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Posted: **29 May 2020 03:09**

Hi
I need to batch rename a bunch of files that are located in one directory and have a name like this: "GF6DA7BXG44DO7BRGU4DQNJZG44DKNRRG42HYSKNI5PTEMBSGAYDIMRYL4ZDAMRTGIZXYLTKOBTXY2LNMFTWKL3KOBSWO7DOOVWGY"
to 0001.jpg and so on till all processed.

Would you please post here the batch file code?
Thank you very much

Posted: **29 May 2020 05:50**

This is trivial with JREN.BAT - a hybrid JScript/batch regular expression renaming utility

Code: Select all

call jren "^.*" "lpad($n,'0000')+'.jpg'" /j /p "c:\pathToYourFolder" /rfm "^[a-z0-9]+$"

It is not much more complicated to use pure batch

Code: Select all

@echo off
setlocal enableDelayedExpansion
pushd "c:\pathToYourFolder"
for /f "delims=: tokens=1*" %%A in (
  '"dir /b /a-d | findstr /x [ABCDEFGHIJKLMNOPQRSTUVWXYZ0123456789]* | findstr /n ."'
) do (
  set "name=0000%%A"
  echo "%%B"  --^>  "!name:~-4!.jpg"
  ren "%%B" "!name:~-4!.jpg"
)
popd

Dave Benham

Posted: **29 May 2020 06:38**

I originally forgot to left zero pad the number to 4 digits. I edited my prior post to add the padding

Posted: **29 May 2020 10:39**

Thanks a million!

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