1994-05-27 12:33:43 +00:00
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.\" Copyright (c) 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. All advertising materials mentioning features or use of this software
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.\" must display the following acknowledgement:
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.\" This product includes software developed by the University of
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.\" California, Berkeley and its contributors.
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.\" 4. 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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.\" @(#)uname.1 8.3 (Berkeley) 4/8/94
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.\"
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.Dd "April 8, 1994"
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.Dt UNAME 1
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.Os
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.Sh NAME
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.Nm uname
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.Nd display information about the system
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.Sh SYNOPSIS
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.Nm uname
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.Op Fl amnrsv
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.Sh DESCRIPTION
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The
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.Nm uname
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command writes the name of the operating system implementation to
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standard output.
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When options are specified, strings representing one or more system
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characteristics are written to standard output.
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.Pp
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The options are as follows:
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.Bl -tag -width Ds
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.It Fl a
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Behave as though the options
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.Fl m ,
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.Fl n ,
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.Fl r ,
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.Fl s ,
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and
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.Fl v
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were specified.
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.It Fl m
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Write the type of the current hardware platform to standard output.
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.It Fl n
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Write the name of the system to standard output.
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.It Fl r
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Write the current release level of the operating system
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to standard output.
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.It Fl s
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Write the name of the operating system implementation to standard output.
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.It Fl v
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Write the version level of this release of the operating system
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to standard output.
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.El
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.Pp
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If the
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.Fl a
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flag is specified, or multiple flags are specified, all
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output is written on a single line, separated by spaces.
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.Pp
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The
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.Nm uname
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utility exits 0 on success, and >0 if an error occurs.
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.Sh SEE ALSO
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.Xr sysctl 3 ,
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1997-01-15 23:25:55 +00:00
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.Xr uname 3 ,
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.Xr sysctl 8
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1994-05-27 12:33:43 +00:00
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.Sh HISTORY
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The
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.Nm uname
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1996-08-23 20:36:11 +00:00
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command appeared in
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.Bx 4.4 .
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1994-05-27 12:33:43 +00:00
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.Sh STANDARDS
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The
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.Nm uname
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command is expected to conform to the
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.St -p1003.2
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specification.
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