asked on

DOS: Rename files recursivly

Hi
I need to rename some files

This works if I cd to the directory first

cd \s z:\Path\with\files\in
ren *.jpeg *.jpg

Open in new window

How do I write a simple bat file that takes the parent folder as a parameter and recursively renames the files skipping over if the files exist

so if a folder had both MyCat.jpeg and mycat.jpg it won't over right mycat.jpg (Windows file names are not case sensitive) and won't prompt

ASKER CERTIFIED SOLUTION

Bill Prew

membership

This solution is only available to members.

To access this solution, you must be a member of Experts Exchange.

Start Free Trial

trevor1940

ASKER

Thanx Bill I'll give it ago when I'm on the system

assuming I've named the file

RenJPG.bat

how do run this

RenJPG.bat "z:\Path\with space\files\in"

Open in new window

I'm guessing something like this

@echo off
setlocal

set BaseDir="%~1"

for /r "%BaseDir%" %%F in ("*.jpeg") do (
if not exist "%%~dpnF.jpg" (
ren "%%~F" "*.jpg"
)
)

Is the a wildcard?
"%%~dpnF.jpg"

Bill Prew

Yes to passing the base folder path in as a parm, that looks okay, except don't add quotes around the %~1.

No, %%~dpnF.jpg is not using wildcards. The %%F is the loop variable from the FOR statement, it will contain the full path of the current file as the FOR itterates. %%dpnF uses modifiers dpn to get just the drive, path and base file name of the file, basically removing the .jpeg extension. Then %%~dpnF.jpg concatenates .jpg at the end so we can determine if there is already a JPG file there with the same name.

»bp

trevor1940

ASKER

Thanx Bill for the answer and follow up explanation

Bill Prew

Welcome, glad that was helpful.

»bp