xref: /dragonfly/usr.bin/uname/uname.1 (revision b7367ef6)
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32.\"	@(#)uname.1	8.3 (Berkeley) 4/8/94
33.\" $FreeBSD: src/usr.bin/uname/uname.1,v 1.8.2.4 2002/10/17 07:47:29 jmallett Exp $
34.\" $DragonFly: src/usr.bin/uname/uname.1,v 1.5 2007/07/30 22:11:33 swildner Exp $
35.\"
36.Dd October 24, 2003
37.Dt UNAME 1
38.Os
39.Sh NAME
40.Nm uname
41.Nd display information about the system
42.Sh SYNOPSIS
43.Nm
44.Op Fl aimnprsv
45.Sh DESCRIPTION
46The
47.Nm
48command writes the name of the operating system implementation to
49standard output.
50When options are specified, strings representing one or more system
51characteristics are written to standard output.
52.Pp
53The options are as follows:
54.Bl -tag -width indent
55.It Fl a
56Behave as though the options
57.Fl m , n , r , s ,
58and
59.Fl v
60were specified.
61.It Fl i
62Write the kernel ident to standard output.
63.It Fl m
64Write the type of the current hardware platform to standard output.
65.It Fl n
66Write the name of the system to standard output.
67.It Fl p
68Write the type of the machine processor architecture to standard output.
69.It Fl r
70Write the current release level of the operating system
71to standard output.
72.It Fl s
73Write the name of the operating system implementation to standard output.
74.It Fl v
75Write the version level of this release of the operating system
76to standard output.
77.El
78.Pp
79If the
80.Fl a
81flag is specified, or multiple flags are specified, all
82output is written on a single line, separated by spaces.
83.Sh ENVIRONMENT
84An environment variable composed of the string
85.Ev UNAME_
86followed by any flag to the
87.Nm
88utility (except for
89.Fl a )
90will allow the corresponding data to be set to the contents
91of the environment variable.
92.Sh DIAGNOSTICS
93.Ex -std
94.Sh SEE ALSO
95.Xr sysctl 3 ,
96.Xr uname 3 ,
97.Xr sysctl 8
98.Sh STANDARDS
99The
100.Nm
101command is expected to conform to the
102.St -p1003.2
103specification.
104.Sh HISTORY
105The
106.Nm
107command appeared in PWB
108.Ux .
109