rename extention of a file

[ClintonLoomis]

I have 1000's of files without extensions. but these files are named as below

xxxxxxxxxxxxxxxx12345-xxxxxxxxxxxxxxxxxxxxx
or
xxxxxxxxxxxxxxxxxxxxx-xxxxxxxxxxxxxxxxx12345

my request is

search for files containing 12345 in their names and rename them with unique
names of xxxxxxxxxx.txt (10 Char name) with .txt extension.
source and destination folder's are the same E:\test

is this possible

if so please help
thanx in advance

[penpen]

You might do something like that (sketched and untested):

Code: Select all

@echo off
setlocal enableExtensions disableDelayedExpansion

set "N=1000000000"
for %%a in ("*12345-*" "*-*12345") do (
	for /f "tokens=* delims=" %b in ('set /a "N"') do (
		echo(ren "%%~a" "%%~b.txt"
	)
	set /a "N+=1"
)

goto :eof

Sidenote: I echoed the commands it should do, so you can check if that's what you like to perform.
In case you are satisfied with the commands created, you might want to delete the "echo(".


penpen