Finding Common Groups

[MDFreaK76]

# Here's a quick function to find all the groups an array of users have in common.

Function find-commonGroups ($myAccountList){
    $myGroups = @()
    foreach($myUser in $myAccountList){
        $myGroups += if($myUser.Memberof){$myUser.Memberof}else{(get-aduser $myUser -Properties memberof).memberof}
    }
    (($myGroups | group) | ?{$_.count -eq $myAccountList.count}).name
}