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IEEE 1003 1-2017 en Information Technology-Portable Operating System Interface (POSIX) Base Specifications Issue 7 (IEEE Computer Society).pdf

1、 IEEE Standard for Information Technology Portable Operating System Interface (POSIX) Base Specifications, Issue 7 IEEE 3 Park Avenue New York, NY 10016-5997 USA IEEE Computer Society and The Open Group Sponsored by the Portable Applications Standards Committee IEEE Std 1003.1-2017 (Revision of IEEE

2、 Std 1003.1-2008) The Open Group Standard Base Specfications, Issue 7 IEEE Std 1 00 3.1-2017 (Revision of IEEE Std 1003.1-2008) The Open Group Standard, Base Specifications, Issue 7 IEEE Standard for Information Technology Portable Operating System Interface (POSIX ) Base Specifications, Issue 7 Spo

3、nsor Portable Applications Standards Committee of the IEEE Computer Society and The Open Group IEEE Std 1003.1 -2017 (Revision of IEEE Std 1003.1-2008) IEEE Standard for Information Technology Portable Operating System Interface (POSIX) Base Specifications, Issue 7 ii Copyright 2018 IEEE and The Ope

4、n Group. All rights reserved. Abstract 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 t

5、o 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,

6、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

7、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

8、into the rest of the document structure, which contains historical information concerning the contents of POSIX.1-2017 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.1-2017:

9、 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 i

10、nternal 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. Keywords application program interface (API), argument, asynchronous, basic regular expression (BRE), bat

11、ch 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, synchron

12、ous, system, thread, X/Open System Interface (XSI) IEEE Std 1003.1 -2017 (Revision of IEEE Std 1003.1-2008) IEEE Standard for Information Technology Portable Operating System Interface (POSIX) Base Specifications, Issue 7 iii Copyright 2018 IEEE and The Open Group. All rights reserved. The Institute

13、 of Electrical and Electronics Engineers, Inc. 3 Park Avenue, New York, NY 10016-5997, USA The Open Group Apex Plaza, Forbury Road, Reading, Berkshire RG1 1AX, UK Copyright 2018 by The Institute of Electrical and Electronics Engineers, Inc. and The Open Group. All rights reserved. Published 31 Janua

14、ry 2018 by the IEEE. PDF: ISBN 978-1-5044-4542-9 STD22909 Print: ISBN 978-1-5044-4543-6 STDPD22909 Published 31 January 2018 by The Open Group. Doc. Number: C181 ISBN: 1-947754-05-08 IEEE is a registered trademark in the US Patent fitness for a particular purpose; non-infringement; and quality, accu

15、racy, effectiveness, currency, or completeness of material. In addition, IEEE disclaims any and all conditions relating to: results; and workmanlike effort. IEEE Standards documents are supplied “AS IS” and “WITH ALL FAULTS.” Use of an IEEE standard is wholly voluntary. The existence of an IEEE stan

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17、evelopments in the state of the art and comments received from users of the standard. In publishing and making its standards available, IEEE is not suggesting or rendering professional or other services for, or on behalf of, any person or entity nor is IEEE undertaking to perform any duty owed by an

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20、Y THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE PUBLICATION, USE OF, OR RELIANCE IEEE Std 1003.1 -2017 (Revision of IEEE Std 1003.1-2008) IEEE Standard for Information Technology Portable Operating System Interfa

21、ce (POSIX) Base Specifications, Issue 7 vi Copyright 2018 IEEE and The Open Group. All rights reserved. UPON ANY STANDARD, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE AND REGARDLESS OF WHETHER SUCH DAMAGE WAS FORESEEABLE. Translations The IEEE consensus development process involves the review

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32、sion of IEEE Std 1003.1-2008) IEEE Standard for Information Technology Portable Operating System Interface (POSIX) Base Specifications, Issue 7 vii Copyright 2018 IEEE and The Open Group. All rights reserved. Photocopies Subject to payment of the appropriate fee, IEEE will grant users a limited, non

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