uname(1)							   User Commands							  uname(1)

NAME

       uname - print name of current system

SYNOPSIS

       uname [-aimnprsvX]

       uname [-S system_name]

DESCRIPTION

       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 sys-
       tem'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).

       -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. Use sys-unconfig(1M) to change a host's name  per-
			 manently.

       -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)

EXAMPLES

       Example 1 Printing the OS name and release level

       The following command:

	 example% uname -sr

       prints the operating system name and release level, separated by one SPACE character.

ENVIRONMENT VARIABLES

       See environ(5) for descriptions of the following environment variables that affect the execution of uname: LANG, LC_ALL, LC_CTYPE,  LC_MES-
       SAGES, and NLSPATH.

       SYSV3	 This  variable is used to override the default behavior of uname. This is necessary to make it possible for some INTERACTIVE UNIX
		 Systems and SCO UNIX programs and scripts to work properly. Many scripts use uname to determine the SYSV3 type or the version	of
		 the  OS  to  ensure  software	is  compatible	with that OS. Setting SYSV3 to an empty string will make uname print the following
		 default values:

		   nodename nodename 3.2 2 i386

		 The individual elements that uname displays can also be modified by setting SYSV3 in the following format:

		   os,sysname,node,rel,ver,mach

		 os	     Operating system (IUS or SCO).

		 sysname     System name.

		 node	     Nodename as displayed by the -n option.

		 rel	     Release level as displayed by the -r option.

		 ver	     Version number as displayed by the -v option.

		 mach	     Machine name as displayed by -m option.

		 Do not put spaces between the elements.  If an element is omitted, the current system value will be used.

EXIT STATUS

       The following exit values are returned:

       0      Successful completion.

       >0     An error occurred.

ATTRIBUTES

       See attributes(5) for descriptions of the following attributes:

       +-----------------------------+-----------------------------+
       |      ATTRIBUTE TYPE	     |	    ATTRIBUTE VALUE	   |
       +-----------------------------+-----------------------------+
       |Availability		     |SUNWcsu			   |
       +-----------------------------+-----------------------------+
       |Interface Stability	     |Standard			   |
       +-----------------------------+-----------------------------+

SEE ALSO

       arch(1), isalist(1), sys-unconfig(1M), sysinfo(2), uname(2), nodename(4), attributes(5), environ(5), standards(5)

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);  future
       releases could be in the x.y.z format (such as 5.3.1, 5.3.2, 5.4.1, and so forth).

       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 dis-
       couraged, 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.

SunOS 5.11							    17 Sep 2003 							  uname(1)