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How to remove underscore from user accounts

Posted on 2009-05-11
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Last Modified: 2013-11-25
When we first setup our Exchange Organization we setup all the user accounts with an underscore between the first initial last name.  (Ex: j_doe.) We are looking to remove that underscore in active directory and I'm wondering if there is a script to automatically remove underscore in user accounts within a specific OU.
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Question by:cjrcomputers
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6 Comments
 
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Expert Comment

by:Chris Dent
ID: 24354834

Yes, but it depends exactly where it appears. Is this the username? Or name you see in the list in AD Users and Computers? Or DisplayName?

Chris
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Author Comment

by:cjrcomputers
ID: 24354850
This is the username.
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Expert Comment

by:Chris Dent
ID: 24355028

Okay, one more extension on that. The pre-Windows 2000 login name? Or the other? :)

If it's the "pre-Windows 2000 login name", which is the most popular, then this little VbScript below will change it for a single OU. You would have to specify the OU on the first line.

It doesn't change anything at the moment, just tells us about it.. for testing / approval.

Chris
Set objOU = GetObject("LDAP://OU=Somewhere,DC=yourdomain,DC=com")
objOU.Filter = Array("user")
 
For Each objUser in objOU
  ' Prevent it catching computers with user objectClass
  If InStr(objUser.Get("objectCategory"), "Person") > 0 Then
 
    ' See if there's an Underscore in the Username
    strOldUsername = objUser.Get("sAMAccountName")
    If InStr(strOldUsername, "_") > 0 Then
 
      ' Remove the Underscore
      strNewUsername = Replace(strOldUsername, "_", "")
 
      ' Pop up a box telling us about the change
      WScript.Echo "sAMAccountName: Old " & strOldUsername & _
        " New " & strNewUsername
 
      ' Once we're happy the script does as it should uncomment these:
      ' objUser.Put "sAMAccountName", strNewUsername
      ' objUser.SetInfo
    End If
 
  End If
Next

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Author Comment

by:cjrcomputers
ID: 24355054
I believe I want to change both.
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Accepted Solution

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Chris Dent earned 2000 total points
ID: 24355600

Okie dokie. This does both then. The other is called "userPrincipalName" in the directory, it should be in the form "someone@yourdomain.com".

If you're happy with it, remove the comment (') from these lines:

      ' objUser.Put "sAMAccountName", strNewUsername
      ' objUser.Put "userPrincipalName", strNewUPN
      ' objUser.SetInfo

Then I suggest you run it on a small / test set of users to start off with.

Chris
Set objOU = GetObject("LDAP://OU=Somewhere,DC=yourdomain,DC=com")
objOU.Filter = Array("user")
 
For Each objUser in objOU
  ' Prevent it catching computers with user objectClass
  If InStr(objUser.Get("objectCategory"), "Person") > 0 Then
 
    ' See if there's an Underscore in the Username
    strOldUsername = objUser.Get("sAMAccountName")
    strOldUPN = objUser.Get("userPrincipalName")
    If InStr(strOldUsername, "_") > 0 Then
 
      ' Remove the Underscore
      strNewUsername = Replace(strOldUsername, "_", "")
      strNewUPN = Replace(strOldUPN, "_", "")
 
      ' Pop up a box telling us about the change
      WScript.Echo "sAMAccountName: Old " & strOldUsername & _
        " New " & strNewUsername & vbCrLf & _
        "userPrincipalName: Old " & strOldUPN & _
        " New " & strnewUPN
 
      ' Once we're happy the script does as it should uncomment these:
      ' objUser.Put "sAMAccountName", strNewUsername
      ' objUser.Put "userPrincipalName", strNewUPN
      ' objUser.SetInfo
    End If
 
  End If
Next

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Author Comment

by:cjrcomputers
ID: 24355781
Worked great!

Thanks.
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