POSIX.1-2017 is simultaneously IEEE Std 1003.1-2017 and The Open Group Standard Base Specifications, Issue 7. POSIX.1-2017 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.1-2017 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.1-201x and why features were included or discarded by the standard developers, is included in the Rationale (Informative) volume. The following areas are outside the scope of POSIX.1-201x: • Graphics interfaces • Database management system interfaces • Record I/O considerations • Object or binary code portability • System configuration and resource availability POSIX.1-2017 describes the external characteristics and facilities that are of importance to application developers, rather than the internal construction techniques employed to achieve these capabilities. Special emphasis is placed on those functions and facilities that are needed in a wide variety of commercial applications.
- Standard Committee
- C/PA - Portable Applications
- Status
- Active Standard
- PAR Approval
- 2017-06-15
- Superseding
- 1003.1-2008
- Board Approval
- 2017-12-06
- History
-
- Published:
- 2018-01-31
Working Group Details
- Society
- IEEE Computer Society
- Standard Committee
- C/PA - Portable Applications
- Working Group
-
POSIX - Austin Joint Working Group
Learn More About POSIX - Austin Joint Working Group - IEEE Program Manager
- Tom Thompson
Contact Tom Thompson - Working Group Chair
- Andrew Josey
Other Activities From This Working Group
Current projects that have been authorized by the IEEE SA Standards Board to develop a standard.
P1003.1
IEEE Draft Standard for Information Technology--Portable Operating System Interface (POSIX(TM)) Base Specifications, Issue 8
POSIX.1-202x defines a standard operating system interface and environment, including a command interpreter (or u201cshellu201d), and common utility programs to support applications portability at the source code level. POSIX.1-202x is intended to be used by both application developers and system implementors and comprises four major components (each in an associated volume):nu2022 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.nu2022 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.nu2022 Definitions for a standard source code-level interface to command interpretation services (a u201cshellu201d) and common utility programs for application programs are included in the Shell and Utilities volume.nu2022 Extended rationale that did not fit well into the rest of the document structure, which contains historical information concerning the contents of POSIX.1-202x and why features were included or discarded by the standard developers, is included in the Rationale (Informative) volume.nThe following areas are outside the scope of POSIX.1-202x:nu2022 Graphics interfacesnu2022 Database management system interfacesnu2022 Record I/O considerationsnu2022 Object or binary code portability nu2022 System configuration and resource availability POSIX.1-202x describes the external characteristics and facilities that are of importance to application developers, rather than the internal construction techniques employed to achieve these capabilities. Special emphasis is placed on those functions and facilities that are needed in a wide variety of commercial applications.
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