rup - Show host status of remote machines (RPC version)
-h Sort the display alphabetically by host name.
-l Sort the display by load average.
-t Sort the display by up time.
The rup command displays the current time, amount of time since the system
was last started, number of users logged in, and the load averages for
remote machines. It broadcasts on the local network, and displays the
responses it receives.
Normally, the listing is in the order in which responses are received, but
this order can be changed by specifying one of the options listed in the
Flags section. When host arguments are given, rather than broadcasting, the
rup command queries the list of specified hosts.
A remote host only responds if it is running the rstatd daemon, which is
normally started from the inetd daemon.
Broadcasting does not work through gateways.
Daemons: inetd(8), rpc.statd(8)