The Open Group Base Specifications Issue 7
IEEE Std 1003.1, 2013 Edition
Copyright © 2001-2013 The IEEE and The Open Group

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This standard has been jointly developed by the IEEE and The Open Group. It is both an IEEE Standard and an Open Group Technical Standard.


POSIX.1-2008 is simultaneously IEEE Std 1003.1-2008 and The Open Group Technical Standard Base Specifications, Issue 7. This 2013 Edition includes IEEE Std 1003.1-2008/Cor 1-2013 incorporated into IEEE Std 1003.1-2008 (the base document). The 2013 edition incorporates Technical Corrigendum 1 addressing problems discovered since the approval of the 2008 edition.


POSIX.1-2008 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.1-2008 is intended to be used by both application developers and system implementors and comprises four major components (each in an associated volume):

The following areas are outside the scope of POSIX.1-2008:

POSIX.1-2008 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.


application program interface (API), argument, asynchronous, basic regular expression (BRE), batch job, batch system, built-in utility, byte, child, command language interpreter, CPU, extended regular expression (ERE), FIFO, file access control mechanism, IEEE 1003.1, input/output (I/O), job control, network, parent, portable operating system interface (POSIX®), shell, stream, string, synchronous, system, thread, X/Open System Interface (XSI)

Frontmatter (Informative)

[ Preface | Typographical Conventions | Notice to Users | Participants | Trademarks | Acknowledgements | Referenced Documents ]

Tables of Contents by volume: [ XBD | XSH | XCU | XRAT ]

Links: [ Alphabetic Index | Topical Index | About the HTML version | Downloads | Report a defect ]


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