November 9, 1998 UNAME 1

### NAME

uname - Print operating system name

### SYNOPSIS

uname [-amnprsv]

### DESCRIPTION

The uname utility writes symbols representing one or more system characteristics to the standard output.

The following options are available:

-a
  Behave as though all of the options -mnrsv were specified.

-m
  print the machine hardware name.

-n
  print the nodename (the nodename may be a name that the system is known by to a communications network).

-p
  print the machine processor architecture name.

-r
  print the operating system release.

-s
  print the operating system name.

-v
  print the operating system version.

If no options are specified, uname prints the operating system name as if the -s option had been specified.

### SEE ALSO

hostname(1), machine(1), uname(3)

### STANDARDS

The uname utility conforms to IEEE Std 1003.2-1992 (``POSIX.2'') . The -p option is an extension to the standard.