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NaOH
Asked: 2014-09-26 11:18:36 +0800 CST

How can I generate a list of the security groups a set of users belong to?

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I have been asked to generate a list of the security groups (so specifically not the distribution groups) that a list of approximately 50 users belong to.

I have a list of users, users.txt that contains each username on a new line. I want to generate a membership.txt that contains the username and a list of the security groups that user is a member of, separated by commas.

The Powershell script I have written so far is as follows:

$users = Get-Content C:\users.txt

ForEach ($User in $users) {
  $getmembership = Get-ADUser $User -Properties MemberOf | Select -ExpandProperty memberof
  $User + ',' + $getmembership | Out-File -Append c:\membership.txt
}

This almost works, but for two problems:

  1. It is generating a list of all groups, not just security groups. How can I tell it to only include security groups and not distribution groups?
  2. The groups are being appended in the format OU=Security Groups,OU=City,DC=domain,DC=com CN=Senior Leaders, but the only information I actually want is Senior Leaders. How can I cut out all the extra information?
windows

1 Answers

  1. Best Answer

    Extend your Get-ADUser line:

    $getmembership = Get-ADUser $User -Properties MemberOf | Select -ExpandProperty memberof | Get-ADGroup -Properties name | Where { $_.GroupCategory -eq 'Security' } | Select -ExpandProperty Name

    This will feed the DN of the Group to Get-ADGroup to retrieve additional properties, then filter on group category and select the name of the group (instead of the DistinguishedName).

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