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Command: uname | Section: 1 | Source: OpenBSD | File: uname.1
UNAME(1) FreeBSD General Commands Manual UNAME(1)
NAME
uname - print operating system name
SYNOPSIS
uname [-amnprsv]
DESCRIPTION
The uname utility writes strings representing one or more system
characteristics to the standard output. The formats and meanings of all
these strings vary among operating systems.
The options are as follows:
-a Behave as though all of the options -mnrsv were specified.
-m Print the name of the hardware type. On OpenBSD, this is the
kernel architecture as returned by machine(1).
-n Print the network name of this machine. On OpenBSD, the same
name can be printed with hostname(1).
-p Print the application architecture as returned by arch(1) -s.
-r Print the operating system release. On OpenBSD, the format is
digit.digit.
-s Print the operating system name. On OpenBSD, this is always
"OpenBSD".
-v Print the operating system version. On OpenBSD, the format is
SYSTEMNAME#buildnumber with the SYSTEMNAME mentioned in
config(8).
If no options are specified, uname prints the operating system name as if
the -s option had been specified.
If -a or more than one option is specified, OpenBSD prints the selected
fields separated by single space characters in the following order:
operating system name, network name, release, version, kernel
architecture, application architecture.
EXIT STATUS
The uname utility exits 0 on success, and >0 if an error occurs.
SEE ALSO
hostname(1), machine(1), uname(3)
STANDARDS
The uname utility is compliant with the IEEE Std 1003.1-2008 ("POSIX.1")
specification.
The flag [-p] is an extension to that specification.
HISTORY
The uname command first appeared in PWB/UNIX 1.0 and was reimplemented
for 4.4BSD.
FreeBSD 14.1-RELEASE-p8 June 3, 2024 FreeBSD 14.1-RELEASE-p8