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31 .Nd file describing the current OS and some of its attributes
35 file is a new-line separated list of key value pairs.
36 The syntax of this file is a reduced
38 variable assignment with the
39 following restrictions:
42 Strings cannot be concatenated together
44 No variable expansion is done
46 All shell special characters must be quoted as documented in
49 Variable assignments must be included inside of double quotes
50 if they contain characters outside of A-Z, a-z and 0-9
52 All strings should be UTF-8 format
54 Non-printable characters should not be used in the strings
57 Lines starting with the character
59 are ignored as comments.
61 The following variables are defined by the standard.
62 .Bl -tag -width XXXXXXXXXX -compact
64 A string describing the preferred OS name.
66 Version string for the OS, in its usual and customary format.
68 Lower case version of the name with only a-z, 0-9,
74 Lower case version of the version with only a-z, 0-9,
80 A pretty version of the name presented to the user.
81 May contain release information.
83 Suggested color presentation for the OS.
84 This string should be suitable for inclusion within an ESC [ m ANSI/ECMA-48
85 escape sequence to render the OS in its preferred color.
86 This variable is optional.
88 A CPE name for the operating system.
89 This field shall follow the NIST Common Platform Enumeration specification.
93 .It Dv PRIVACY_POLICY_URL
94 Links on the internet, in RFC 3986 format for different aspects of this OS.
95 These variables are optional.
97 A string identifying the build.
98 This variable is optional.
100 A string describing the variant of this operating system.
101 This variable is optional.
103 Lower case version of the variant with only a-z, 0-9,
108 This variable is optional.
111 All other variables have no standard-defined meaning.
113 .Bl -tag -width XXXXXXXXXX -compact
114 .It Pa /etc/os-release
115 Symbolic link to actual
118 .It Pa /var/run/os-release
119 Generated os-release file describing the currently running system.
121 .Bl -tag -width XXXXXXXXXX -compact
122 .It CPE Specification
123 .Lk https://csrc.nist.gov/projects/security-content-automation-protocol/scap-specifications/cpe
125 .Lk https://tools.ietf.org/html/rfc3986
126 .It os-release Specification
127 .Lk https://www.linux.org/docs/man5/os-release.html
129 This file first appeared in