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.Dd October 5, 2020
.Dt HOSTNAME 1
.Os
.Sh NAME
.Nm hostname
.Nd set or print the name of current host system
.Sh SYNOPSIS
.Nm
.Op Fl f
.Op Fl s | d
.Op Ar name-of-host
.Sh DESCRIPTION
The
.Nm
utility prints the name of the current host.
The super-user can
set the hostname by supplying an argument; this is usually done in the
initialization script
.Pa /etc/rc.d/hostname ,
normally run at boot
time.
This script uses the
.Va hostname
variable in
.Pa /etc/rc.conf .
.Pp
Options:
.Bl -tag -width flag
.It Fl f
Include domain information in the printed name.
This is the default behavior.
.It Fl s
Trim off any domain information from the printed
name.
.It Fl d
Only print domain information.
.El
.Sh EXAMPLES
Set the host name of the machine and check the result:
.Bd -literal -offset indent
$ hostname beastie.localdomain.org
$ hostname
beastie.localdomain.org
.Ed
.Pp
Do not show domain information:
.Bd -literal -offset indent
$ hostname -s
beastie
.Ed
.Pp
Show only domain information:
.Bd -literal -offset indent
$ hostname -d
localdomain.org
.Ed
.Sh SEE ALSO
.Xr gethostname 3 ,
.Xr rc.conf 5
.Sh HISTORY
The
.Nm
command appeared in
.Bx 4.2 .