UNAME(1) User Commands UNAME(1)
NAME
uname - print name of current system
SYNOPSIS
uname [
-aimnoprsvX]
uname -S system_nameDESCRIPTION
The
uname utility prints information about the current system on the
standard output. When options are specified, symbols representing one or
more system characteristics will be written to the standard output. If no
options are specified,
uname prints the current operating system's name.
The options print selected information returned by
uname(2),
sysinfo(2), or
both.
OPTIONS
The following options are supported:
-a Prints basic information currently available from the system.
-i Prints the name of the platform.
-m Prints the machine hardware name (class). Use of this option is
discouraged. Use
uname -p instead. See
NOTES section below.
-n Prints the nodename (the nodename is the name by which the system
is known to a communications network).
-o Prints the name of the kernel/OS.
-p Prints the current host's ISA or processor type.
-r Prints the operating system release level.
-s Prints the name of the operating system. This is the default.
-S system_name The nodename may be changed by specifying a system name argument.
The system name argument is restricted to SYS_NMLN characters.
SYS_NMLN is an implementation specific value defined in
<
sys/utsname.h>. Only the super-user is allowed this capability.
This change does not persist across reboots of the system. See
nodename(5) for details of how to change a host's name permanently.
-v Prints the operating system version.
-X Prints expanded system information, one information element per
line, as expected by SCO UNIX. The displayed information includes:
+o system name, node, release, version, machine, and number of
CPUs.
+o BusType, Serial, and Users (set to "unknown" in Solaris)
+o OEM# and Origin# (set to 0 and 1, respectively)
EXIT STATUS
The
uname utility exits 0 on success, and >0 if an error occurs.
EXAMPLES
Example 1 Printing the OS name and release level
The following command:
$ uname -sr
...prints the operating system name and release level, separated by
one SPACE character.
ENVIRONMENT VARIABLES
See
environ(7) for descriptions of the following environment variables that
affect the execution of
uname: LANG, LC_ALL, LC_CTYPE, LC_MESSAGES, and
NLSPATH.
INTERFACE STABILITY
StandardSEE ALSO
arch(1),
isalist(1),
sysinfo(2),
uname(2),
nodename(5),
attributes(7),
environ(7),
standards(7)NOTES
Independent software vendors (ISVs) and others who need to determine
detailed characteristics of the platform on which their software is either
being installed or executed should use the
uname command.
To determine the operating system name and release level, use
uname -sr.
To determine only the operating system release level, use
uname -r. Notice
that operating system release levels are not guaranteed to be in
x.y format
(such as 5.3, 5.4, 5.5, and so forth); but could be in the
x.y.z format
(such as 5.5.1).
In SunOS 4.x releases, the
arch(1) command was often used to obtain
information similar to that obtained by using the
uname command. The
arch(1) command output `sun4' was often incorrectly interpreted to signify
a SunOS SPARC system. If hardware platform information is desired, use
uname -sp.
The
arch -k and
uname -m commands return equivalent values; however, the
use of either of these commands by third party programs is discouraged, as
is the use of the
arch command in general. To determine the machine's
Instruction Set Architecture (ISA or processor type), use
uname with the
-p option.
OmniOS February 9, 2018 OmniOS