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UNAME(1)                FreeBSD General Commands Manual               UNAME(1)

NAME
     uname - display information about the system

SYNOPSIS
     uname [-aiKmnoprsUv]

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
             specified.

     -i      Write the kernel ident to standard output.

     -K      Write the FreeBSD version of the kernel.

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

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

     -o      This is a synonym for the -s option, for compatibility with other
             systems.

     -p      Write the type of the machine processor architecture to standard
             output.

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

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

     -U      Write the FreeBSD version of the user environment.

     -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 -K and -U flags are intended to be used for fine grain
     differentiation of incremental FreeBSD development and user visible
     changes.

ENVIRONMENT
     An environment variable composed of the string UNAME_ followed by any
     flag to the uname utility (except for -a) will allow the corresponding
     data to be set to the contents of the environment variable.

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

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

STANDARDS
     The uname command is expected to conform to the IEEE Std 1003.2
     (``POSIX.2'') specification.

HISTORY
     The uname command appeared in PWB UNIX.

     The -K and -U extension flags appeared in FreeBSD 10.0.

FreeBSD 11.0-PRERELEASE        November 20, 2013       FreeBSD 11.0-PRERELEASE

NAME | SYNOPSIS | DESCRIPTION | ENVIRONMENT | EXIT STATUS | SEE ALSO | STANDARDS | HISTORY

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