"POSIX"是什么意思? [英] What is the meaning of "POSIX"?

问题描述

什么是POSIX?我已经阅读了 Wikipedia文章，并且每次遇到该术语时都会阅读.事实是，我从来没有真正了解它是什么.

任何人都可以通过解释"POSIX的需求"来向我解释吗?

解决方案

POSIX 是一个家庭由 IEEE 指定的标准，以澄清和统一应用程序编程接口(及附属问题) ，例如Unix-y操作系统提供的命令行shell实用程序.当您编写依赖于POSIX标准的程序时，可以肯定的是，可以轻松地将它们移植到大量的Unix派生系列中(包括Linux，但不仅限于此！)；如果并且当您使用某些未作为Posix一部分标准化的Linux API时，如果将来要将该程序或库移植到其他Unix-y系统(例如MacOSX)上，将会遇到困难.

What is POSIX? I have read the Wikipedia article and I read it every time I encounter the term. The fact is that I never really understood what it is.

Can anyone please explain it to me by explaining "the need for POSIX" too?

解决方案

POSIX is a family of standards, specified by the IEEE, to clarify and make uniform the application programming interfaces (and ancillary issues, such as commandline shell utilities) provided by Unix-y operating systems. When you write your programs to rely on POSIX standards, you can be pretty sure to be able to port them easily among a large family of Unix derivatives (including Linux, but not limited to it!); if and when you use some Linux API that's not standardized as part of Posix, you will have a harder time if and when you want to port that program or library to other Unix-y systems (e.g., MacOSX) in the future.

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