POSIX标准接口的文档，Information technology — Portable Operating System Interface (POSIX®) Base Specifications, Issue 7 开发者的必备书籍，收藏一下。

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INTERNATIONAL STANDARD ISOIEC IEEE 9945 First edition 20090915 Information technology Portable Operating System Interface POSIX Base Specifications Issue 7 Technologies de linformation Spcifications de base de linterface pour la portabilit des systmes POSIX Issue 7 Reference number ISOIECIEEE 99452009E Copyright 20012008 IEEE and The Open Group All rights reserved Authorized licensed use limited to BEIJING UNIVERSITY OF TECHNOLOGY Downloaded on December 242012 at ......