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I just needed to add the end bracket: @echo off pushd "C:\temp\TEST\IN\" setlocal enabledelayedexpansion for /f "delims=" %%a in ('dir "*D.txt" /b /a-d ') do ( set "name=%%~na" set "name=!name:~0,-1!I" ren "%%a" "!name!%%~xa") pop...

PERFECT foxidrive!!! HERO of the day
Thank you very very much! Your last post did the job!

The file-names look like this:
20131009-17-02-01200278D.txt
or
20131009-17-02-01200278.txt
But never contain letters, only numbers or a D at the end...

No, there will be no other D in the filename.

No, only the last one, the one infront of the .txt

Thank you foxidrive!
This does rename it with adding a "I" correctly to the files with a D at the end.
But how can I REPLACE the D?

1234D.txt --> 1234I.txt (D gets replaced by I)
1234X.txt --> 1234X.txt (stays the same)

THANK YOU

Thank you foxidrive!
This does rename it with adding a "I" correctly to the files with a D at the end.
How can I REPLACE the D

1234D.txt --> 1234I.txt (D gets replaced by I)
1234X.txt --> 1234X.txt (stays the same)

THANK YOU

Hi I want to rename all the files in the directory "C:\temp\TEST\IN\" but only txt-files that end with a "D". Here is what I tried in a batch... but both didn't work. Help highly appreciated -----try1----- @echo off set Quelle="C:\temp\TEST\IN\" Set DateiFilter="*D...