freebsd-skq/usr.bin/uname/uname.1
jmallett f315e03eaf Make kernel identification (`ident' in the config(8) driver) available to
userland, and the kernel.  In the kernel by way of the 'ident[]' variable
akin to all the other stuff generated by newvers.sh.  In userland it is
available to sysctl consumers via KERN_IDENT or 'kern.ident'.  It is exported
by uname(1) by the -i flag.

Reviewed by:	hackers@
2003-06-09 09:38:20 +00:00

107 lines
3.4 KiB
Groff

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.\" @(#)uname.1 8.3 (Berkeley) 4/8/94
.\" $FreeBSD$
.\"
.Dd April 02, 2003
.Dt UNAME 1
.Os
.Sh NAME
.Nm uname
.Nd display information about the system
.Sh SYNOPSIS
.Nm
.Op Fl aimnprsv
.Sh DESCRIPTION
The
.Nm
command writes the name of the operating system implementation to
standard output.
When options are specified, strings representing one or more system
characteristics are written to standard output.
.Pp
The options are as follows:
.Bl -tag -width indent
.It Fl a
Behave as though the options
.Fl m , n , r , s ,
and
.Fl v
were specified.
.It Fl i
Write the kernel ident to standard output.
.It Fl m
Write the type of the current hardware platform to standard output.
.It Fl n
Write the name of the system to standard output.
.It Fl p
Write the type of the machine processor architecture to standard output.
.It Fl r
Write the current release level of the operating system
to standard output.
.It Fl s
Write the name of the operating system implementation to standard output.
.It Fl v
Write the version level of this release of the operating system
to standard output.
.El
.Pp
If the
.Fl a
flag is specified, or multiple flags are specified, all
output is written on a single line, separated by spaces.
.Sh DIAGNOSTICS
.Ex -std
.Sh ENVIRONMENT
An environment variable composed of the string
.Ev UNAME_
followed by any flag to the
.Nm
utility (except for
.Fl a )
will allow the corresponding data to be set to the contents
of the environment variable.
.Sh SEE ALSO
.Xr sysctl 3 ,
.Xr uname 3 ,
.Xr sysctl 8
.Sh HISTORY
The
.Nm
command appeared in PWB UNIX.
.Sh STANDARDS
The
.Nm
command is expected to conform to the
.St -p1003.2
specification.