Copy Group Membership to another user

From：
http://www.sysadmins.eu/2015/02/copy-group-membership-to-another-user.html

因為memberof是object array，所以要select之後 轉給Add-AdroupMember

To get actual group membership for user John.Doe you can use:
get-aduser -identity John.Doe -properties memberof | select-object memberof -expandproperty memberof
To copy groups to another existing user use:

get-aduser -identity John.Doe -properties memberof | select-object memberof -expandproperty memberof | Add-AdGroupMember -Members Jane.Doe

If you wanna know what groups were copied:

get-aduser -identity Jane.Doe -properties memberof | select memberof -expandproperty memberof | Add-ADGroupMember -members John.Doe -PassThru

You can also copy groupmembership to multiple users:

get-aduser -identity Jane.Doe -properties memberof | select memberof -expandproperty memberof | Add-ADGroupMember -members John.Doe,Jack.Doe -PassThru