ISO_IEC_TR_24715_2006E.pdf

Reference numberISO/IEC TR 24715:2006(E)ISO/IEC 2006 TECHNICAL REPORT ISO/IECTR24715First edition2006-11-01Information technology Programming languages,their environments and system software interfaces Technical Report on the Conflicts between the ISO/IEC 9945(POSIX)and the Linux Standard Base(ISO/IEC 23360)Technologies de linformation Langages de programmation,leurs environnements et interfaces de logiciel systme Rapport technique sur les conflits entre lISO/CEI 9945(POSIX)et la base normalise Linux(ISO/CEI 23360)ISO/IEC TR 24715:2006(E)PDF disclaimer This PDF file may contain embedded typefaces.In accordance with Adobes licensing policy,this file may be printed or viewed but shall not be edited unless the typefaces which are embedded are licensed to and installed on the computer performing the editing.In downloading this file,parties accept therein the responsibility of not infringing Adobes licensing policy.The ISO Central Secretariat accepts no liability in this area.Adobe is a trademark of Adobe Systems Incorporated.Details of the software products used to create this PDF file can be found in the General Info relative to the file;the PDF-creation parameters were optimized for printing.Every care has been taken to ensure that the file is suitable for use by ISO member bodies.In the unlikely event that a problem relating to it is found,please inform the Central Secretariat at the address given below.ISO/IEC 2006 All rights reserved.Unless otherwise specified,no part of this publication may be reproduced or utilized in any form or by any means,electronic or mechanical,including photocopying and microfilm,without permission in writing from either ISO at the address below or ISOs member body in the country of the requester.ISO copyright office Case postale 56 CH-1211 Geneva 20 Tel.+41 22 749 01 11 Fax +41 22 749 09 47 E-mail copyrightiso.org Web www.iso.org Published in Switzerland ii ISO/IEC 2006 All rights reserved ISO/IEC TR 24715:2006(E)ISO/IEC 2006 All rights reserved iii Contents Contents.iii Foreword.iv Introduction.v 1 Scope.1 2 Normative References.2 3 Terms and Definitions.3 4 System Interfaces.4 4.1 Headers and Interface Definitions.4 4.2 ISO/IEC 9945 System Interfaces not in the LSB.7 5 Shell and Utilities Interfaces.9 5.1 Built-in cd,getopts,read,umask and wait.9 5.2 Utility Definitions.9 5.3 Internationalization.15 5.4 ISO/IEC 9945 Utility Interfaces not in the LSB.15 Appendix A:Background Information.17 A.1 POSIX Standards.17 ISO/IEC TR 24715:2006(E)iv ISO/IEC 2006 All rights reserved Foreword ISO(the International Organization for Standardization)and IEC(the International Electrotechnical Commission)form the specialized system for worldwide standardization.National bodies that are members of ISO or IEC participate in the development of International Standards through technical committees established by the respective organization to deal with particular fields of technical activity.ISO and IEC technical committees collaborate in fields of mutual interest.Other international organizations,governmental and non-governmental,in liaison with ISO and IEC,also take part in the work.In the field of information technology,ISO and IEC have established a joint technical committee,ISO/IEC JTC 1.International Standards are drafted in accordance with the rules given in the ISO/IEC Directives,Part 2.The main task of the joint technical committee is to prepare International Standards.Draft International Standards adopted by the joint technical committee are circulated to national bodies for voting.Publication as an International Standard requires approval by at least 75%of the national bodies casting a vote.In exceptional circumstances,the joint technical committee may propose the publication of a Technical Report of one of the following types:type 1,when the required support cannot be obtained for the publication of an International Standard,despite repeated efforts;type 2,when the subject is still under technical development or where for any other reason there is the future but not immediate possibility of an agreement on an International Standard;type 3,when the joint technical committee has collected data of a different kind from that which is normally published as an International Standard(“state of the art”,for example).Technical Reports of types 1 and 2 are subject to review within three years of publication,to decide whether they can be transformed into International Standards.Technical Reports of type 3 do not necessarily have to be reviewed until the data they provide are considered to be no longer valid or useful.Attention is drawn to the possibility that some of the elements of this document may be the subject of patent rights.ISO and IEC shall not be held responsible for identifying any or all such patent rights.ISO/IEC TR 24715,which is a Technical Report of type 3,was prepared by Joint Technical Committee ISO/IEC JTC 1,Information technology,Subcommittee SC 22,Programming languages,their env