IEEE/ISO/IEC 9945

Detail information

Designation: IEEE/ISO/IEC 9945

Publication date: 24/03/2026

Pages: 4110

Country: International technical standard

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Anotation

Adoption Standard - Active.
POSIX.1-2024 is simultaneously IEEE Std 1003.1™-2024 and The Open Group Standard Base Specifications, Issue 8. POSIX.1-2024 defines a standard operating system interface and environment, including a command interpreter (or “shell”), and common utility programs to support applications portability at the source code level. POSIX.1-2024 is intended to be used by both application developers and system implementors and comprises four major components (each in an associated volume): --General terms, concepts, and interfaces common to all volumes of this standard, including utility conventions and C-language header definitions, are included in the Base Definitions volume. --Definitions for system service functions and subroutines, language-specific system services for the C programming language, function issues, including portability, error handling, and error recovery, are included in the System Interfaces volume. --Definitions for a standard source code-level interface to command interpretation services (a “shell”) and common utility programs for application programs are included in the Shell and Utilities volume.--Extended rationale that did not fit well into the rest of the document structure, which contains historical information concerning the contents of POSIX.1-2024 and why features were included or discarded by the standard developers, is included in the Rationale (Informative) volume.

ISBN: 979-8-8557-3289-4, 979-8-8557-3290-0
Number of Pages: 4110
Product Code: STD28746, STDPD28746
Keywords: application program interface (API), argument, asynchronous, basic regular expression (BRE), built-in utility, byte, child, command language interpreter, CPU, extended regular expression (ERE), FIFO, file access control mechanism
Category: Architecture/Parallel and High-Performance Computing|Portable Applications (POSIX)