AD / Import CSV Update Attributes Script

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      by ws2000 at 2012-12-07 17:47:21

      Hello

      I am attempting to modify some standard AD account fields with the script below. Sorry… I am a Powershell newbie. Please help me fill in the missing pieces to get it working correctly. Do I need to use a -Replace for previously populated fields? Is it better to use a –Clear parameter and start fresh? If my CVS file contains more attributes fields than I currently need to update in AD is it ok to just pick those fields with the script?

      # Import AD Module

      Import-Module ActiveDirectory

      # Import CSV into variable $userscsv

      $userscsv = import-csv D:\areile\Desktop\adtest.csv

      # Loop through CSV and update users if they exist in CVS file

      foreach ($user in $userscsv) {

      #Search in specified OU and Update existing attributes
      Get-ADUser -Filter "samaccountname -eq ‘$($user.samaccountname)’" -SearchBase "DC=subdomain,DC=company,DC=com" %
      % { Set-ADUser $_ -Replace @{Division = $($_.Division); Office = $($_."Office"); City = $($_.City)}
      }

      CSV File Example
      SamAccountName Division Office City
      GRogers Accounting Main Office New York
      SRogers Admin Building #2 New Jersy

      Thank you in advance

      by DonJ at 2012-12-08 08:49:56

      Using -Replace is fine – it’ll internally clear the attribute and put in the new value for you. And it’s certainly fine to just pick and choose what you want to update.

      by ws2000 at 2012-12-08 11:31:26

      Any ideas why the script doesn’t work for me? When I ran it I didn’t get any errors but none of the test users where updated either.

      by DonJ at 2012-12-08 11:52:37

      It’s actually doing exactly what you told it to ;). It definitely updated them – it just set them to their existing values, so there was no change.

      Firs, the following line should end in a pipe, not a %…

      Get-ADUser -Filter "samaccountname -eq '$($user.samaccountname)'" -SearchBase "DC=subdomain,DC=company,DC=com" %

      That was probably just a typo here int he forums, I’m guessing.

      In the ForEach-Object block below, $_ represents an ADUser object. That’s what Get-ADUser produces, and that’s what you’re piping in. So you’re basically setting the Division property to whatever the Division property already is (and Office, and City, etc). Instead of $_.Division, I think you may have meant to use $user.Division, which would represent the current line from your CSV file. $_ only represents what was piped into ForEach-Object; it won’t contain a reference to your CSV file, but instead represents the original ADUser values.

      % { Set-ADUser $_ -Replace @{Division = $user.Division); Office = $user."Office"); City = $user.City)}

      That said, there’s no real reason to use a ForEach block at all. The way you’ve written Get-ADUser, it can only return one user, because samAccountName is guaranteed unique in a domain:

      Get-ADUser -Filter "samaccountname -eq '$($user.samaccountname)'" -SearchBase "DC=subdomain,DC=company,DC=com" |
      Set-ADUser -City $user.city -Division $user.division -Office $user.office

      You can’t use $_ in that syntax because it’s meaningless, but Set-ADUser can accept the ADUser object output by Get-ADUser. Also notice that I used the attribute-specific parameters instead of -Replace; you only need -Replace when you need to mess with an attribute for which there isn’t a dedicated parameter. Using ForEach as you did doesn’t hurt anything, but it overcomplicates your code and makes it a bit harder to follow what’s happening. Since Get-ADUser, as you’re using it, will never produce a collection, there’s no need to enumerate through them.

      Speaking of overcomplicating… you don’t actually need Get-ADUser. You’re specifying the samAccountName as your search criteria; that’s guaranteed unique across the domain.

      foreach ($user in $userscsv) {
      Set-ADUser -Identity $user.samaccountname -City $user.city -Division $user.division -Office $user.office
      }

      Set-ADUser already knows how to search by samAccountName, since that’s guaranteed to return only one object.

      If you were hell-bent on making this a one-liner:

      Import-CSV D:\areile\Desktop\adtest.csv |
      ForEach-Object {
      Set-ADUser -Identity $_.samaccountname -City $_.city -Division $_.division -Office $_.office
      }

      And a couple of notes…

      You don’t need to use subexpressions as you were: $_.Division is fine instead of $($_.Division). Although as noted, I think you want $user.division. The only time you need the subexpression syntax is when you’re inside double quotes.


      $_."Office"

      You don’t need the double quotes when the property doesn’t contain a space (few do). $_."The Property" would need the quotes, for example.

      by RichardSiddaway at 2012-12-09 02:31:19

      The other issue is that -replace uses the LDAP attribute name rather than the GUI name so city becomes l and office becomes physicaldeliveryofficename

      by ws2000 at 2012-12-10 15:40:07

      DonJ and RichardSiddaway

      Thank you both for the responses. They were very helpful in educating me and arriving at a actual working script. The code example @ RichardSiddaway Blog = "Bulk modifications using Set-AdUser" worked perfectly for me.

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