1.\" $NetBSD: hostname.1,v 1.19 2013/07/19 11:19:23 wiz Exp $ 2.\" 3.\" Copyright (c) 1983, 1988, 1990, 1993 4.\" The Regents of the University of California. All rights reserved. 5.\" 6.\" Redistribution and use in source and binary forms, with or without 7.\" modification, are permitted provided that the following conditions 8.\" are met: 9.\" 1. Redistributions of source code must retain the above copyright 10.\" notice, this list of conditions and the following disclaimer. 11.\" 2. Redistributions in binary form must reproduce the above copyright 12.\" notice, this list of conditions and the following disclaimer in the 13.\" documentation and/or other materials provided with the distribution. 14.\" 3. Neither the name of the University nor the names of its contributors 15.\" may be used to endorse or promote products derived from this software 16.\" without specific prior written permission. 17.\" 18.\" THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND 19.\" ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 20.\" IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 21.\" ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE 22.\" FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 23.\" DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 24.\" OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 25.\" HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 26.\" LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 27.\" OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 28.\" SUCH DAMAGE. 29.\" 30.\" @(#)hostname.1 8.2 (Berkeley) 4/28/95 31.\" 32.Dd July 19, 2013 33.Dt HOSTNAME 1 34.Os 35.Sh NAME 36.Nm hostname 37.Nd set or print name of current host system 38.Sh SYNOPSIS 39.Nm 40.Op Fl AadfIis 41.Op Ar name-of-host 42.Sh DESCRIPTION 43.Nm 44prints the name of the current host. 45The super-user can set the host name by supplying an argument; this is 46usually done in the network initialization script 47.Pa /etc/rc.d/network , 48normally run at boot 49time. 50.Pp 51Options: 52.Bl -tag -width flag 53.It Fl A 54Display the FQDN of each address on all interfaces. 55.It Fl a 56Display alias name(s) of the host. 57.It Fl d 58Display the DNS domain. 59.It Fl f 60Display the FQDN for the hostname. 61.It Fl I 62Display each IP address on all interfaces. 63.It Fl i 64Display the IP address(es) for the hostname. 65.It Fl s 66Display the short hostname. 67.El 68.Sh NOTES 69With the exception of 70.Fl I 71and 72.Fl s , 73the other options will retrieve their results from the resolver. 74.Sh SEE ALSO 75.Xr domainname 1 , 76.Xr getaddrinfo 3 , 77.Xr gethostbyname 3 , 78.Xr gethostname 3 , 79.Xr getifaddrs 3 , 80.Xr getnameinfo 3 , 81.Xr sethostname 3 , 82.Xr hosts 5 83.Sh HISTORY 84The 85.Nm 86utility appeared in 87.Bx 4.2 . 88