powershell - Transfer Users groups in AD with an audit trail -

i need copy users groups anothers , have audit trail.

this code have:

#this user name of account want copy.   $old = read-host  #this user account want copy to.  $new = read-host  get-adprincipalgroupmembership $old | set-adprincipalgroupmembership $new |   export-csv "pathhere" -notypeinformation  

this code thought might work

#this user name of account want copy.   $old = read-host  #this user account want copy to.  $new = read-host  get-adprincipalgroupmembership $uold | set-adprincipalgroupmembership $new |   export-csv "pathhere" -notypeinformation  

i have no idea need complete should simple command in powershell.