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 char-
		       acters. SYS_NMLN is an implementation specific value defined in <sys/utsname.h>. Only the super-user is allowed this  capa-
		       bility.	This  change  does  not  persist across reboots of the system. Use sys-unconfig(1M) to change a host's name perma-
		       nently.

       -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 5.10							    17 Sep 2003 							  uname(1)