忙碌的POSIX。1-2008同时是IEEE Std 1003.1-2008和开放集团技术标准基础规范第7版。本2013版包括IEEE标准1003.1-2008/Cor 1-2013，该标准已并入IEEE标准1003.1-2008（基础文件）。技术勘误表说明了自IEEE Std 1003.1-2008批准以来发现的问题。POSIX。1-2008定义了标准操作系统接口和环境，包括命令解释器（或shell）和通用实用程序，以支持源代码级别的应用程序可移植性。POSIX。1-2008旨在供应用程序开发人员和系统实现人员使用，包括四个主要组件（每个组件都在相关卷中）。

Active. POSIX.1-2008 is simultaneously IEEE Std 1003.1-2008 and The Open Group Technical Standard BaseSpecifications, 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 Technical Corrigendum addresses problems discovered since the approval of IEEE Std 1003.1-2008. 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).