UNAME(1) | General Commands Manual | 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.

November 9, 1998 | NetBSD 10.99