1.\"- 2.\" Copyright (c) 1983, 1988, 1990, 1993 3.\" The Regents of the University of California. All rights reserved. 4.\" 5.\" Redistribution and use in source and binary forms, with or without 6.\" modification, are permitted provided that the following conditions 7.\" are met: 8.\" 1. Redistributions of source code must retain the above copyright 9.\" notice, this list of conditions and the following disclaimer. 10.\" 2. Redistributions in binary form must reproduce the above copyright 11.\" notice, this list of conditions and the following disclaimer in the 12.\" documentation and/or other materials provided with the distribution. 13.\" 3. Neither the name of the University nor the names of its contributors 14.\" may be used to endorse or promote products derived from this software 15.\" without specific prior written permission. 16.\" 17.\" THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND 18.\" ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 19.\" IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 20.\" ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE 21.\" FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 22.\" DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 23.\" OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 24.\" HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 25.\" LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 26.\" OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 27.\" SUCH DAMAGE. 28.\" 29.\" @(#)hostname.1 8.2 (Berkeley) 4/28/95 30.\" 31.Dd October 5, 2020 32.Dt HOSTNAME 1 33.Os 34.Sh NAME 35.Nm hostname 36.Nd set or print name of current host system 37.Sh SYNOPSIS 38.Nm 39.Op Fl f 40.Op Fl s | d 41.Op Ar name-of-host 42.Sh DESCRIPTION 43The 44.Nm 45utility prints the name of the current host. 46The super-user can 47set the hostname by supplying an argument; this is usually done in the 48initialization script 49.Pa /etc/rc.d/hostname , 50normally run at boot 51time. 52This script uses the 53.Va hostname 54variable in 55.Pa /etc/rc.conf . 56.Pp 57Options: 58.Bl -tag -width flag 59.It Fl f 60Include domain information in the printed name. 61This is the default behavior. 62.It Fl s 63Trim off any domain information from the printed 64name. 65.It Fl d 66Only print domain information. 67.El 68.Sh EXAMPLES 69Set the host name of the machine and check the result: 70.Bd -literal -offset indent 71$ hostname beastie.localdomain.org 72$ hostname 73beastie.localdomain.org 74.Ed 75.Pp 76Do not show domain information: 77.Bd -literal -offset indent 78$ hostname -s 79beastie 80.Ed 81.Pp 82Show only domain information: 83.Bd -literal -offset indent 84$ hostname -d 85localdomain.org 86.Ed 87.Sh SEE ALSO 88.Xr gethostname 3 , 89.Xr rc.conf 5 90.Sh HISTORY 91The 92.Nm 93command appeared in 94.Bx 4.2 . 95