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UUID(3) Programmers Manual UUID(3) NAME uuid - DCE compatible Universally Unique Identifier library SYNOPSIS #include <uuid.h> DESCRIPTION The UUID library is used to generate unique identifiers for objects that may be accessible beyond the local system. This library generates UUIDs compatible with those created by the Open Software Foundation (OSF) Dis- tributed Computing Environment (DCE) utility uuidgen(1). The UUIDs generated by this library can be reasonably expected to be unique within a system, and unique across all systems. They could be used, for in- stance, to generate unique HTTP cookies across multiple web servers without communication between the servers, and without fear of a name clash. CONFORMING TO This library generates UUIDs compatible with OSF DCE 1.1, and hash based UUIDs V3 and V5 compatible with RFC-4122 <https://tools.ietf.org/html/rfc4122>. AUTHORS Theodore Y. Ts'o SEE ALSO uuid_clear(3), uuid_compare(3), uuid_copy(3), uuid_generate(3), uuid_is_null(3), uuid_parse(3), uuid_time(3), uuid_unparse(3) REPORTING BUGS For bug reports, use the issue tracker <https://github.com/util-linux/util-linux/issues>. AVAILABILITY The libuuid library is part of the util-linux package since version 2.15.1. It can be downloaded from Linux Kernel Archive <https://www.kernel.org/pub/linux/utils/util-linux/>. util-linux 2.42.2 2026-06-16 UUID(3)
NAME | SYNOPSIS | DESCRIPTION | CONFORMING TO | AUTHORS | SEE ALSO | REPORTING BUGS | AVAILABILITY
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