.\"	$OpenBSD: uname.1,v 1.11 2004/02/23 15:01:33 jmc Exp $
.\"
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.\"     from: @(#)du.1	6.13 (Berkeley) 6/20/91
.\"
.Dd January 26, 1994
.Dt UNAME 1
.Os
.Sh NAME
.Nm uname
.Nd print operating system name
.Sh SYNOPSIS
.Nm uname
.Op Fl amnprsv
.Sh DESCRIPTION
The
.Nm uname
utility writes symbols representing one or more system characteristics
to the standard output.
.Pp
The options are as follows:
.Bl -tag -width Ds
.It Fl a
Behave as though all of the options
.Fl mnrsv
were specified.
.It Fl m
Print the machine hardware name.
.It Fl n
Print the nodename (the nodename may be a name
that the system is known by to a communications
network).
.It Fl p
Print the processor type in more detail.
.It Fl r
Print the operating system release.
.It Fl s
Print the operating system name.
.It Fl v
Print the operating system version.
.El
.Pp
If no options are specified,
.Nm uname
prints the operating system name as if the
.Fl s
option had been specified.
.Sh SEE ALSO
.Xr hostname 1 ,
.Xr machine 1 ,
.Xr uname 3
.Sh STANDARDS
The
.Nm uname
utility conforms to
.St -p1003.2-92 .
.Sh HISTORY
The
.Nm
command appeared in
.Bx 4.4 .