lsmbox(1) on Linux
The text 63e91412400e, as Debian 3.1 (Sarge) shipped it.
list number of total, old unread, and new messages for the specified mailbox(es)
Flags it lists
-
--check-interval -
--continuous -
--help -
--new-only -
--no-old -
--no-summary -
--no-total -
--short-names -
--version -
-S -
-c -
-i -
-n -
-o -
-s -
-t