RWHO(1) BSD Reference Manual RWHO(1)
rwho - who is logged in on local machines
The rwho command produces output similar to who, but for all machines on
the local network. If no report has been received from a machine for 5
minutes then rwho assumes the machine is down, and does not report users
last known to be logged into that machine.
If a users hasn't typed to the system for a minute or more, then rwho re-
ports this idle time. If a user hasn't typed to the system for an hour
or more, then the user will be omitted from the output of rwho unless the
-a flag is given.
/var/rwho/whod.* information about other machines
The rwho command appeared in 4.3BSD.
This is unwieldy when the number of machines on the local net is large.
4.2 Berkeley Distribution June 6, 1993 1