uname(1)                                                           uname(1)

NAME
     uname - output or set name of current system

SYNOPSIS
     uname [option ...]                                            Format 1

     uname -S nodename                                             Format 2

DESCRIPTION
     The uname command writes information related to the current operating
     system to standard output.

OPTIONS
   Format 1: Output the system name

     uname [option ...]

     No option specified:
          The name of the operating system is output, e.g. SINIX-Y.

     -a   (a - all) Outputs the following information: the name of the
          operating system, the system's node name, the version number of
          the operating system, the revision status of the operating system
          version, the machine hardware name, the number of CPUs, the mega-
          bytes of main memory, and the processor type, e.g. SINIX-Y utmost
          5.43 B0032 RM600 6/256 R4000.

     -M   Outputs the number of CPUs and megabytes of memory, e.g. 6/256.

     -m   (m - machine type) Outputs the machine hardware name, e.g. RM600.

     -n   (n - node) Outputs the node name of the operating system. This is
          the name by which a system is known in a communication network,
          e.g. utmost.

     -p   (p - processor type) Outputs the processor family of the system
          that you are currently using, e.g. R4000 for RISC-based systems.

     -r   (r - release) Outputs the version number of the operating system,
          e.g. 5.43.

     -s   (s - system) Outputs the name of the operating system. This is
          the name by which the operating system is known in the local in-
          stallation, e.g. SINIX-Y.

     -v   (v - version) Outputs the revision status of the operating system
          version, e.g. B0032.








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uname(1)                                                           uname(1)

   Format 2: Set and change the node name

     uname -S nodename

     Format 2 may be used by the system administrator only.

     -S nodename
          The node name of the system is changed to nodename.

          The command uname -S outputs the following message:

          uname can't change the node name in the whole software.
          For more details refer to the uname manual page.

          This means:

          If the node name of the system is also the name of one or more
          interfaces, you have to update the network configuration and re-
          start all network services.

          Note:

          The node name of a system can also be changed using sysadm(1M),
          menu item "system_setup".

LOCALE
     The LCMESSAGES environment variable governs the language in which
     message texts are displayed. If LCMESSAGES is undefined or is defined
     as the null string, it defaults to the value of LANG. If LANG is like-
     wise undefined or null, the system acts as if it were not internation-
     alized.

     The LCALL environment variable governs the entire locale. LCALL
     takes precedence over all the other environment variables which affect
     internationalization.

NOTES
     A user wishing to maintain backwards compatibility with older releases
     must set the environment variables correctly to ensure that uname sup-
     plies the old name. There are various possibilities for doing this.

     1) The /etc/default/uname file exists.
          In this case, the $SNINAME environment variable is evaluated in
          accordance with the /etc/default/uname file and can be set
          locally by any user.

          a) If this variable is set to SNINAME=comp (default), or to a
             value other than "std", uname -s returns "SINIX-Y"or "SINIX-N".

          b) If this variable is set to SNINAME=std, uname -s returns
             "ReliantUNIX-Y" or "ReliantUNIX-N".



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uname(1)                                                           uname(1)

     2) The /etc/default/uname file does not exist.
          In this case, the four environment variables OLDSYSNAME,
          OLDRELEASE, OLDMACHINE, OLDVERSION can be set, in order to
          change the default values displayed for the system, release,
          machine, and version name (e. g. using /etc/profile). These vari-
          ables can also be set locally by any user (e. g. by means of the
          .profile file).

          Default output corresponds to the output with SNINAME=comp.

EXAMPLES
   Format 1: Example of using compatibility variables

     1. You want to ensure that uname always returns the old name: Set
        SNINAME=comp in the /etc/default/uname file.

     2. You want to ensure that uname always returns the new name: Set
        SNINAME=std in the /etc/default/uname file.

     3. You want to ensure that in certain cases (users, applications)
        uname returns output that differs from the setting in
        /etc/default/uname: For example, for the old value set

        SNINAME=comp
        export SNINAME

        in the application or user environment.

     4. You want to replace all uname output with your own values: Delete
        the /etc/default/uname file and use the OLD... environment vari-
        ables for controlling your uname output.

   Format 2: Example of querying the node name

     You want to find out the node name of the operating system as well as
     the version number of the operating system you are running:

     $ uname -nr
     utmost 5.43

FILES
     /etc/default/uname

SEE ALSO
     sysinfo(2), uname(2).









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