To change files in folders and subs just use something like this:

C:\Users\jo\Pictures\to-upload*.*ren *.JPG *.jpg

Hi Freondude,

If you are still looking for an answer, then try this:

1.Open Notepad, Copy and paste the below script :

@echo off
REM — Prepare the Command Processor –
SETLOCAL ENABLEEXTENSIONS
SETLOCAL DISABLEDELAYEDEXPANSION

::BatchSubstitude – parses a File line by line and replaces a substring”
::syntax: BatchSubstitude.bat OldStr NewStr File
:: OldStr [in] – string to be replaced
:: NewStr [in] – string to replace with
:: File [in] – file to be parsed
if “%*”==”" findstr “^::” “%~f0″&GOTO:EOF
for /f “tokens=1,* delims=]” %%A in (’”type %3|find /n /v “”"‘) do (
set “line=%%B”
if defined line (
call set “line=echo.%%line:%~1=%~2%%”
for /f “delims=” %%X in (’”echo.”%%line%%”"‘) do %%~X
) ELSE echo.
)

2. Save the file as “xyz.bat”

The above script will parses a file line by line and will replaces a desired substring.

3. Open cmd prompt >> type the following command:

c:\xyz.bat “text-to-replace” text-to-replace-with c:\FileToEdit.txt > c:\Edited_file.txt

For more info, visit http://winitpro.wordpress.com/2009/07/31/batchscript/

Hope this helps :)

Definitely use biterscripting ( http://www.biterscripting.com ) . Here is a sample script - it will replace all "ABC" in files *.html to "XYZ".

# Get a list of .html files.
var str list ; lf -n "*.html" > $list
# File loop.
while ($list <> "")
do
# Read in the next file.
var str file ; lex "1" $list > $file
var str content ; cat $file > $content
# Replace "ABC" to "XYZ".
sal "^ABC^" "XYZ" $coontent > null
# Write file back.
echo $content > { echo $file }
done