To list users and the shared folders to which they have access, issue the command:
readership -l
Example output:
$ readership -l group=lee-staff@siroe.com: user/user2/lee-staff richb: user/golf user/user10/Drafts user/user2/lee-staff user/user10/Trash han1: user/public+hurling@siroe.com user/golf gregk: user/public+hurling@siroe.com user/heaving user/tennis