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The Portable Operating System Interface (POSIX; IPA: //) is a family of standards specified by the IEEE Computer Society for maintaining compatibility between operating systems. POSIX defines both the system and user-level application programming interfaces (APIs), along with command line shells and utility interfaces, for software compatibility (portability) with variants of Unix and other operating systems. POSIX is also a trademark of the IEEE. POSIX is intended to be used by both application and system developers.
|Year started||1988; 35 years ago (1988)|
|Latest version||IEEE Std 1003.1-2017|
2017; 6 years ago (2017)
|Organization||Austin Group (IEEE Computer Society, The Open Group, ISO/IEC JTC 1/SC 22/WG 15)|
|Related standards||ISO/IEC 9945|
|Domain||Application programming interfaces|