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Manual Pages  — OS-RELEASE


os-release – file describing the current OS and some of its attributes



The os-release file is a new-line separated list of key value pairs. The syntax of this file is a reduced sh(1) variable assignment with the following restrictions:

Lines starting with the character ‘#’ are ignored as comments.


The following variables are defined by the standard.
NAME A string describing the preferred OS name.
VERSION Version string for the OS, in its usual and customary format.
ID Lower case version of the name with only a-z, 0-9, ‘.’, ‘-’, and ‘_’.
  Lower case version of the version with only a-z, 0-9, ‘.’, ‘-’, and ‘_’.
  A pretty version of the name presented to the user. May contain release information.
  Suggested color presentation for the OS. This string should be suitable for inclusion within an ESC [ m ANSI/ECMA-48 escape sequence to render the OS in its preferred color. This variable is optional.
CPE_NAME A CPE name for the operating system. This field shall follow the NIST Common Platform Enumeration specification.
  Links on the internet, in RFC 3986 format for different aspects of this OS. These variables are optional.
BUILD_ID A string identifying the build. This variable is optional.
VARIANT A string describing the variant of this operating system. This variable is optional.
  Lower case version of the variant with only a-z, 0-9, ‘.’, ‘-’, and ‘_’. This variable is optional.

All other variables have no standard-defined meaning.


  Symbolic link to actual os-release file.
  Generated os-release file describing the currently running system.


CPE Specification
.Lk https://csrc.nist.gov/projects/security-content-automation-protocol/scap-specifications/cpe
RFC 3986
.Lk https://tools.ietf.org/html/rfc3986
os-release Specification
.Lk https://www.linux.org/docs/man5/os-release.html


This file first appeared in FreeBSD 13.0 .

OS-RELEASE (5) November 9, 2019

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