I need a batch script that will remove a set of ip address out of a txt file. these ip address need to be defined in another text file or in the script is this possible? im a complete noob, so i need some help thanks

You mean like this: type file.txt > newfile.txt You query is not clear. Please provide some additional information so we can better understand your problem. The above simply types the contents of file.txt and redirects the output from STDOUT to newfile.txt. "Computer security." — Oxymoron

ok say i have two files computerlist.txt and exclusionlist.txt i want a batch to look at the exclusionlist.txt and remove all the values inside from the computerlist.txt

here's a vbscript to find IP address and output to file. [code] Dim objRe,objFSO Dim myFile myFile = "c:\test.txt" Set objFSO=CreateObject("Scripting.FileSystemObject") Set objRe = New RegExp objRe.Pattern = "\b(?:\d{1,3}\.){3}\d{1,3}\b" objRe.Global = True strLines = objFSO.OpenTextFile(myFile,1).ReadAll Set Matches = objRe.Execute(strLines) For Each match In Matches WScript.Echo match Next [/code] usage: cscript myscript.vbs > outfile

anyway to do it in a batch script?

sure, but i will not be the one to do it :) please wait.

::==rmdup @echo off if exist computerlist.txt ( rename computerlist.txt computerlist.tmp ) findstr /v /g:exclusionlist.txt computerlist.tmp >> computerlist.txt if exist computerlist.tmp ( del computerlist.tmp ) "Computer security." — Oxymoron