mirror of
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26cf4a61f6
Event: Advanced UNIX programming course (Fall'23) at NTHU Pull Request: https://github.com/freebsd/freebsd-src/pull/1037
93 lines
2.7 KiB
Groff
93 lines
2.7 KiB
Groff
.\"-
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.\" Copyright (c) 1983, 1988, 1990, 1993
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.\" The Regents of the University of California. All rights reserved.
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.\"
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.\" Redistribution and use in source and binary forms, with or without
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.\" modification, are permitted provided that the following conditions
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.\" are met:
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.\" 1. Redistributions of source code must retain the above copyright
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.\" notice, this list of conditions and the following disclaimer.
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.\" 2. Redistributions in binary form must reproduce the above copyright
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.\" notice, this list of conditions and the following disclaimer in the
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.\" documentation and/or other materials provided with the distribution.
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.\" 3. Neither the name of the University nor the names of its contributors
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.\" may be used to endorse or promote products derived from this software
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.\" without specific prior written permission.
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.\"
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.\" THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
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.\" ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
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.\" IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
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.\" ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
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.\" FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
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.\" DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
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.\" OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
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.\" HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
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.\" LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
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.\" OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
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.\" SUCH DAMAGE.
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.\"
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.Dd October 5, 2020
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.Dt HOSTNAME 1
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.Os
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.Sh NAME
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.Nm hostname
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.Nd set or print the name of current host system
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.Sh SYNOPSIS
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.Nm
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.Op Fl f
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.Op Fl s | d
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.Op Ar name-of-host
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.Sh DESCRIPTION
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The
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.Nm
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utility prints the name of the current host.
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The super-user can
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set the hostname by supplying an argument; this is usually done in the
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initialization script
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.Pa /etc/rc.d/hostname ,
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normally run at boot
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time.
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This script uses the
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.Va hostname
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variable in
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.Pa /etc/rc.conf .
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.Pp
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Options:
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.Bl -tag -width flag
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.It Fl f
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Include domain information in the printed name.
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This is the default behavior.
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.It Fl s
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Trim off any domain information from the printed
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name.
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.It Fl d
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Only print domain information.
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.El
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.Sh EXAMPLES
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Set the host name of the machine and check the result:
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.Bd -literal -offset indent
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$ hostname beastie.localdomain.org
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$ hostname
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beastie.localdomain.org
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.Ed
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.Pp
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Do not show domain information:
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.Bd -literal -offset indent
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$ hostname -s
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beastie
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.Ed
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.Pp
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Show only domain information:
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.Bd -literal -offset indent
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$ hostname -d
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localdomain.org
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.Ed
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.Sh SEE ALSO
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.Xr gethostname 3 ,
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.Xr rc.conf 5
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.Sh HISTORY
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The
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.Nm
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command appeared in
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.Bx 4.2 .
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