+.TH RUPTIME 1C "8 March 1982"
+.UC 4
+.SH NAME
+ruptime \- show host status of local machines
+.SH SYNOPSIS
+.B ruptime
+[
+.B \-a
+] [
+.B \-l
+] [
+.B \-t
+] [
+.B \-u
+]
+.SH DESCRIPTION
+.I Ruptime
+gives a status line like
+.I uptime
+for each machine on the local network;
+these are formed from packets broadcast by each host
+on the network once a minute.
+.PP
+Machines for which no
+status report has been received for 5 minutes are shown as being down.
+.PP
+Users idle an hour or more are not counted unless the
+.B \-a
+flag is given.
+.PP
+Normally, the listing is sorted by host name.
+The
+.B \-l ,
+.B \-t ,
+and
+.B \-u
+flags specify sorting by
+load average,
+uptime,
+and number of users, respectively.
+.SH FILES
+.DT
+/usr/spool/rwho/whod.* data files
+.SH SEE ALSO
+rwho(1C)