Copy membership from contacts to a user in Powershell

The purpose is that the main/target users have the same group membership as the main user. Ultimately of the solution is that you need to remove the groups from the target if the source member is not in the group member. The perfect solution in power shell, You need to the follow the code

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If the purpose is to ensure that the target user has the same group memberships as the source user, A complete solution will also remove groups from the target that the source is not a member of. A complete Power Shell V2 solution, From an old thread follows:
Following is the example for Copy AD accounts with Power Shell.

Get-QADUser for the account and for copy into another account we will use New-QADUser. We can understand by following code.

Get-QADUser 'James Johns' -export | New-QADUser -Parent Container mydomain.local/test -Name 'Janny Grant' -SamAccountName grant -Display Name 'Janny Grant' -First Name Jonny -Last Name Grant -User Password 'J@nnysPwd' -import
And for copying the group membership this code will be used.

(Get-QADUser 'James Johns').MemberOf | Add-QADGroupMember -Member ps64jgrant