1.\" $OpenBSD: uname.1,v 1.9 2000/11/09 17:52:45 aaron Exp $ 2.\" 3.\" Copyright (c) 1990 The Regents of the University of California. 4.\" All rights reserved. 5.\" 6.\" Redistribution and use in source and binary forms, with or without 7.\" modification, are permitted provided that the following conditions 8.\" are met: 9.\" 1. Redistributions of source code must retain the above copyright 10.\" notice, this list of conditions and the following disclaimer. 11.\" 2. Redistributions in binary form must reproduce the above copyright 12.\" notice, this list of conditions and the following disclaimer in the 13.\" documentation and/or other materials provided with the distribution. 14.\" 3. All advertising materials mentioning features or use of this software 15.\" must display the following acknowledgement: 16.\" This product includes software developed by the University of 17.\" California, Berkeley and its contributors. 18.\" 4. Neither the name of the University nor the names of its contributors 19.\" may be used to endorse or promote products derived from this software 20.\" without specific prior written permission. 21.\" 22.\" THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND 23.\" ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 24.\" IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 25.\" ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE 26.\" FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 27.\" DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 28.\" OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 29.\" HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 30.\" LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 31.\" OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 32.\" SUCH DAMAGE. 33.\" 34.\" from: @(#)du.1 6.13 (Berkeley) 6/20/91 35.\" 36.Dd January 26, 1994 37.Dt UNAME 1 38.Os 39.Sh NAME 40.Nm uname 41.Nd print operating system name 42.Sh SYNOPSIS 43.Nm uname 44.Op Fl amnpsrv 45.Sh DESCRIPTION 46The 47.Nm uname 48utility writes symbols representing one or more system characteristics 49to the standard output. 50.Pp 51The options are as follows: 52.Bl -tag -width Ds 53.It Fl a 54Behave as though all of the options 55.Fl mnrsv 56were specified. 57.It Fl m 58Print the machine hardware name. 59.It Fl n 60Print the nodename (the nodename may be a name 61that the system is known by to a communications 62network). 63.It Fl p 64Print the processor type in more detail. 65.It Fl s 66Print the operating system name. 67.It Fl r 68Print the operating system release. 69.It Fl v 70Print the operating system version. 71.El 72.Pp 73If no options are specified, 74.Nm uname 75prints the operating system name as if the 76.Fl s 77option had been specified. 78.Sh SEE ALSO 79.Xr hostname 1 , 80.Xr machine 1 , 81.Xr uname 3 82.Sh STANDARDS 83The 84.Nm uname 85utility conforms to 86.St -p1003.2-92 . 87.Sh HISTORY 88The 89.Nm 90command appeared in 91.Bx 4.4 . 92