.hd systat "check on Subsystem status directories" 03/20/80 systat .ds 'Systat' is a shell program which contains commands to list the contents of the gossip directory (names of users with pending messages from the 'to' command), and the mail directory (names of users with undelivered mail). .es systat .fl =gossip= for messages from 'to' .br =mail= for messages from 'mail' .sa mail (1), to (1), lf (1)