there, a vbscript for you...
Option Explicit
Dim objFSO,objFile,myFile,line,toSearch,toReplace
Set objFSO=CreateObject("Scripting.FileSystemObject")
myFile="C:\temp\test.txt"
toSearch = "Contents"
toReplace = "License"
Set objFile=objFSO.OpenTextFile(myFile,1)
Do Until objFile.AtEndOfLine
line = objFile.ReadLine
If InStr(1,line,toSearch) > 0 Then
line = Replace(line,toSearch,toReplace)
WScript.Echo line
Else
WScript.Echo line
End If
Loop
Set objFSO=Nothing
Set objFile =Nothing
output:
C:\vbscript>more c:\temp\test.txt
xxx:yyy:mmm:nnn:ooo:zzz:
aaa:bbbmmm:nnn:ooo::ccc:
mmm:nnn:ooo:
computername =computer1
<Contents:<Data:<Licensee:Mylicense><SiteID:123><ProductName:MyProduct>>>
mmm:mmm:nnn:ooo:nnn:ooo:
C:\vbscript>cscript /nologo test2.vbs
xxx:yyy:mmm:nnn:ooo:zzz:
aaa:bbbmmm:nnn:ooo::ccc:
mmm:nnn:ooo:
computername =computer1
<License:<Data:<Licensee:Mylicense><SiteID:123><ProductName:MyProduct>>>
mmm:mmm:nnn:ooo:nnn:ooo:
to pipe to a new file, use >