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I need to gather some data in AD for a monthly report.  I have the following code that could be better, but has worked for me.  I've tried to expand it to output a comma separated list of users in addition to the formatted data.  Heres the snippet I'm trying to expand and what I have so far:

foreach ($i in $colPropList){$objSearcher.PropertiesToLoad.Add($i) | Out-Null}
           $OU = $ou.ToUpper()
        Write-Output "`n*********** Users - $OU Container ***********`n" 
              
        # Go search and and return the requested attrributes
        $colResults = $objSearcher.FindAll()

        # Loop through each record and grab the returned attributes,
        # assign them to a variable and echo out values
        foreach ($objResult in $colResults)
            {$objItem = $objResult.Properties
                $counter++
                "Name: " + $objItem.name
                "Description: " + $objItem.description 
                "Distinguished Name: " + $objItem.distinguishedname
                "UserAccountControl: " + $objItem.useraccountcontrol
                
                Write-Output ""
                #### New part trying to add.  Basically get the last part of the name in the distinguishedname (i.e CN=Joe Blow, OU=example .... returns Blow) seems to work
                $names1 += $objItem.name.Split(' ')[-1] -join "'"
             }
             #### Convert to lower
            $names1.tolower()
            #### Reset
            $names1 = $null
            Write-Output ""
         Write-Output "============== Total for $OU is $counter ==============="
         $total+=$counter
}

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The output currently is this:
*********** Users - OU Container ***********
Name: Joe Blow
Description: Admin User
Distinguished Name: CN=Joe Blow,OU=Administrators,OU=example,DC=EX,DC=ETC,DC=ETC
UserAccountControl: 512

Name: Joe smith
Description: Regular User
Distinguished Name: CN=Joe Smith,OU=Users,OU=example,DC=EX,DC=ETC,DC=ETC
UserAccountControl: 512

blowsmith
============== Total for OU is 2 ===============

What I am trying to get to is to format the blowsmith portion to look like the following:
blow (admin), smith (user)
So, if the DN contains the word Administrators then append (admin) and if not just append (user).  All separated by a comma.  I've tried various ways and get close, but can't seem to put it all together.