-d days

Counts as a reader any identity that has selected the shared IMAP folder within the indicated number of days. The default is 30.

-p months

Does not count users who have not selected the shared IMAP folder within the indicated number of months. The default is infinity and removes the seen flag data for those users. This option also removes the “seen” flag data for those users from the store. 

-l

List the shared folders shared to that specific user. 

-s folder identifier right

Setacl for folder.