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UNAME(1)                     BSD Reference Manual                     UNAME(1)

NAME
     uname - display information about the system

SYNOPSIS
     uname [-amnrsv]

DESCRIPTION
     The uname 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.

     The options are as follows:

     -a      Behave as though the options -m, -n, -r, -s, and -v were speci-
             fied.

     -m      Write the type of the current hardware platform to standard out-
             put.

     -n      Write the name of the system to standard output.

     -r      Write the current release level of the operating system to stan-
             dard output.

     -s      Write the name of the operating system implementation to standard
             output.

     -v      Write the version level of this release of the operating system
             to standard output.

     If the -a flag is specified, or multiple flags are specified, all output
     is written on a single line, separated by spaces.

     The uname utility exits 0 on success, and >0 if an error occurs.

SEE ALSO
     sysctl(8),  sysctl(3),  uname(3)

HISTORY
     The uname command appeared in 4.4BSD.

STANDARDS
     The uname command is expected to conform to the IEEE Std1003.2
     (``POSIX'') specification.

4.4BSD                           April 8, 1994                               1