Generic RegEx Script

Option Explicit

Const ForReading = 1
Const ForWriting = 2
Const ForAppending = 8

Dim objRegEx
Dim targetString
Dim colMatch
Dim objMatch
Dim objFSO
Dim strInputFile
Dim strOutputFile
Dim objInputFile
Dim objOutputFile
Dim strLine
Dim strPattern
Dim strMatch

strInputFile = Wscript.Arguments.Named("InputFile")
strOutputFile = Wscript.Arguments.Named("OutputFile")
strPattern = Wscript.Arguments.Named("Pattern")
strPattern = Replace(strPattern,""","""")

If Trim(strInputFile) <> "" And Trim(strPattern) <> "" Then
    Set objRegEx = CreateObject("vbscript.regexp")
    With objRegEx
        .Pattern = strPattern
        .Global = True
        .IgnoreCase = True
    End With
    Set objFSO = CreateObject("Scripting.FileSystemObject")
    If objFSO.FileExists(strInputFile) Then
        Set objInputFile = objFSO.OpenTextFile(strInputFile, ForReading )
        If Trim(strOutputFile) <> "" Then
            Set objOutputFile = objFSO.OpenTextFile(strOutputFile, ForAppending, True)
        End If
        Do While Not objInputFile.AtEndOfStream
            strLine = objInputFile.ReadLine
            If Trim(strLine) <> "" Then
                Set colMatch = objRegEx.Execute(strLine)
                For each objMatch in colMatch
                    strMatch = Replace(Replace(objMatch.Value,"UniqueID=",""),"""","")
                    If Trim(strOutputFile) <> "" Then
                        objOutputFile.WriteLine(strMatch)
                    Else
                        WScript.Echo(strMatch)
                    End If
                Next
            End If
        Loop
        objInputFile.Close
        If Trim(strOutputFile) <> "" Then
            objOutputFile.Close
        End If
        Set objInputFile = Nothing
        Set objOutputFile = Nothing
        Set objFSO = Nothing
    End If
Else
    ShowUsage()
End If
Sub ShowUsage
    WScript.Echo "Usage: CScript.exe " & WScript.ScriptName & " /InputFile:""FILENAME"" [/OutputFile:""FILENAME]"" /Pattern:""PATTERN"""
    WScript.Echo ""
    WScript.Echo "Is OutputFile is omitted, matches will be displayed"
    WScript.Echo ""
    WScript.Echo "Substitute "" with ""
End Sub