Get Specific AD Users from AD Group

Question

I need to get specific users from specific Groups in Active Directory.

So far I have this:

$Groupnames = get-adgroup -Filter "name -like '$Groupfilter'" -Properties * -SearchBase $Grouppath |
    Select-Object Name, @{
        Name='Username';
        Expression={
            Get-ADGroupMember -identity $($_.Name) -Recursive |
            Get-ADUser -Property SamAccountName |
            Select -ExpandProperty SamAccountName
        }
    }

This works to get the Groups with their names. Now I want to get all users from these groups. what works but the formating is completly off. I want this:

Name                               Username                                                                                
----                               --------                                                                                
Group1                             user1adm                                                                             
Group2                             {user1adm, user1, user2, user2adm...}                                      
Group3                             {user1adm, user3, user2adm, user6...}

But I get this:

{user1adm, user1, user2, user2adm...}

With that formatting I can't see all users.

My goal at the end is also to exclude users who end with adm , but I don't know how to do that.

Can you help me?

Answer 1

Get-ADGroupMember can return objects of type 'user', 'group' or 'computer', so piping the returned objects straight through to Get-ADUser could get you into trouble if one of the objects is not a user.

Having said that, the objects returned from Get-ADGroupMember already contain the SamAccountName property you are after, so you can eliminate Get-ADUser from the code.

$Groupnames = Get-ADGroup -Filter "name -like '$Groupfilter'" -SearchBase $Grouppath | 
                Select-Object Name, 
                @{Name = 'Username'; Expression = { 
                        ($_ | Get-ADGroupMember -Recursive | 
                              Select-Object -ExpandProperty SamAccountName | 
                              Where-Object { $_ -notmatch 'adm$' } 
                        ) -join ', '
                    }
                }

# output the result on screen
$Groupnames | Format-Table -AutoSize

# output to CSV file
$Groupnames | Export-Csv -Path 'Path\To\The\GroupMembers.csv' -NoTypeInformation