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.\" Copyright (c) 1983, 1990, 1993, 1994 .\" The Regents of the University of California. All rights reserved. .\" .\" Redistribution and use in source and binary forms, with or without .\" modification, are permitted provided that the following conditions .\" are met: .\" 1. Redistributions of source code must retain the above copyright .\" notice, this list of conditions and the following disclaimer. .\" 2. Redistributions in binary form must reproduce the above copyright .\" notice, this list of conditions and the following disclaimer in the .\" documentation and/or other materials provided with the distribution. .\" 4. Neither the name of the University nor the names of its contributors .\" may be used to endorse or promote products derived from this software .\" without specific prior written permission. .\" .\" THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND .\" ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE .\" IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE .\" ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE .\" FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL .\" DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS .\" OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) .\" HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT .\" LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY .\" OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF .\" SUCH DAMAGE. .\" .\" @(#)ruptime.1 8.2 (Berkeley) 4/5/94 .\" $FreeBSD: release/9.1.0/usr.bin/ruptime/ruptime.1 216370 2010-12-11 08:32:16Z joel $ .\" .Dd March 1, 2003 .Dt RUPTIME 1 .Os .Sh NAME .Nm ruptime .Nd show host status of local machines .Sh SYNOPSIS .Nm .Op Fl alrtu .Op Ar host ... .Sh DESCRIPTION The .Nm utility gives a status line like .Xr uptime 1 for each machine on the local network; these are formed from packets broadcast by each host on the network once every three minutes. .Pp If no operands are given, .Nm displays uptime status for all machines; otherwise only those hosts specified on the command line are displayed. If hosts are specified on the command line, the sort order is equivalent to the order hosts were specified on the command line. .Pp Machines for which no status report has been received for 11 minutes are shown as being down, and machines for which no status report has been received for 4 days are not shown in the list at all. .Pp The options are as follows: .Bl -tag -width Ds .It Fl a Include all users. By default, if a user has not typed to the system for an hour or more, then the user will be omitted from the output. .It Fl l Sort by load average. .It Fl r Reverse the sort order. .It Fl t Sort by uptime. .It Fl u Sort by number of users. .El .Pp The default listing is sorted by host name. .Sh FILES .Bl -tag -width /var/rwho/whod.* -compact .It Pa /var/rwho/whod.* data files .El .Sh SEE ALSO .Xr rwho 1 , .Xr uptime 1 , .Xr rwhod 8 .Sh HISTORY A .Nm utility appeared in .Bx 4.2 .