.\"
.\" Copyright (c) 2003 Gunnar Ritter
.\"
.\" This software is provided 'as-is', without any express or implied
.\" warranty. In no event will the authors be held liable for any damages
.\" arising from the use of this software.
.\"
.\" Permission is granted to anyone to use this software for any purpose,
.\" including commercial applications, and to alter it and redistribute
.\" it freely, subject to the following restrictions:
.\"
.\" 1. The origin of this software must not be misrepresented; you must not
.\"    claim that you wrote the original software. If you use this software
.\"    in a product, an acknowledgment in the product documentation would be
.\"    appreciated but is not required.
.\"
.\" 2. Altered source versions must be plainly marked as such, and must not be
.\"    misrepresented as being the original software.
.\"
.\" 3. This notice may not be removed or altered from any source distribution.
.\"
.\" Sccsid @(#)uname.1	1.5 (gritter) 10/8/03
.TH UNAME 1 "10/8/03" "Heirloom Toolchest" "User Commands"
.SH NAME
uname \- get system name
.SH SYNOPSIS
\fBuname\fR [\fB\-amnprsv\fR]
.sp
\fBuname\fR [\fB\-S\fI system_name\fR]
.SH DESCRIPTION
The
.B uname
command prints the name of the system implementation,
or, depending on its options, one of the following:
.TP
.B \-a
All available information.
.TP
.B \-m
The name of the hardware type.
.TP
.B \-n
The node name of this computer.
.TP
.B \-p
Processor type.
.TP
.B \-r
Release level of the system implementation.
.TP
.B \-s
Name of the system implementation.
.TP
.B \-v
Version level of the system implementation.
.PP
If \fB\-S\fI\ system_name\fR is specified,
the node name is changed to
.IR system_name .
This requires appropriate privilege.
.SH "ENVIRONMENT VARIABLES"
.TP
.B SYSV3
If set to the empty string,
the output of
.I \-s
is the same as that of
.IR \-n ,
and the output of
.IR \-r ,
.IR \-v ,
and
.I \-m
is set to the fixed values `3.2', `2', and `i386', respectively.
Otherwise, it is interpreted as the six fields
.IP
\fIos\fB,\fIsysname\fB,\fInodename\fB,\fIrelease\fB,\fIversion\fB,\fImachine\fR
.IP
where
.I os
is ignored,
and the other fields specify the output for
.IR \-s ,
.IR \-n ,
.IR \-r ,
.IR \-v ,
and
.IR \-m .
If fewer than six fields are given,
remaining parts of the output are not changed.
This variable also causes the output of
.I \-p
not to be printed with
.IR \-a .
.SH "SEE ALSO"
uname(2),
sethostname(2)