Calling on vbscript and powershell experts for help

Need some help with deciphering this vbscript... this script first runs a dsquery to grab all users and DN's into a file.

Basically line 12, I'm looking to grab the DN where it builds a strNullset variable to determine if @Domain or - is there a way to do this in powershell without dumping out all of the users in a file, then append later in the script?

Also looking for what line 24 actually does with the "2", and also what line 29 does... ?

Set objArgs = WScript.Arguments

If objArgs.Count < 1 Then
	Wscript.Quit -1
End If
strUserDN = objArgs(0)

Set objUser = GetObject("LDAP://" & strUserDN)
If UCase(objUser.AccountDisabled) = "FALSE" Then 
	strNullSet = objUser.sAMAccountName & "" 
	If InStr(UCase(strUserDN),"Domain2") Then   
		strNullSet = objUser.sAMAccountName & ""
		End If
	If objUser.mail = "" Then                             
		If objUser.userPrincipalName = strNullSet Then 
			objUser.put "userPrincipalName", strNullSet    
			WScript.Echo objUser.sAMAccountName & "," & strNullSet & "," & objUser.userPrincipalName & "," & "Null"
		End If
		If objUser.userPrincipalName = objUser.mail Then  
			strO365Alias = "smtp:" & objUser.sAMAccountName & ""
			If objUser.mailNickname = objUser.sAMAccountName & "2" Then
				strO365Alias = "smtp:" & objUser.sAMAccountName & "2@mail"
			End If
			objUser.PutEx ADS_PROPERTY_APPEND, "proxyAddresses", Array(strO365Alias)
			objUser.put "userPrincipalName", objUser.mail
		End If
	End If
	If objUser.customeAttribute1 = strNullSet Then
		objUser.put "customAttribute1", strNullSet
	End If
End If

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Thanks experts!
Ron ShortsAsked:
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David Johnson, CD, MVPRetiredCommented:
It would be easier if you stated what you have i.e. what are the arguments and what you want.

"smtp:" & objUser.sAMAccountName & "2@mail" ???

It looks like you want to change to
Ben Personick (Previously QCubed)Lead SaaS Infrastructure EngineerCommented:
Line 24 checks if the user's Nickname is the SamAccountName followed by 2.

If this is true, it sets the " o365Alias "address to that value "(SamAccountName&2)@mail"

Why isn't it supposed to be "(SamAccountName&2)"

Line 29 creates a user principle name for the object because none existed.

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Ron ShortsAuthor Commented:
David - this adds the samaccountname of each and appends unless the distinguishedname flags the other OU it's it (Domain2 for example) where I have another suffix; another OU, it appends to if Domain2 is in the path in the DN.
Ron ShortsAuthor Commented:
Ben - perhaps the "2" is if there is already an entry for the samaccountname, and the 2 is in case this is added twice?

I think line 29 replaces the userprincipalname with what's in the mail attribute, does that make sense?
Ben Personick (Previously QCubed)Lead SaaS Infrastructure EngineerCommented:

Abo3ut Line 29, yes, you're right, I mistook it for being the statement under the "if null " section.
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