unix - What is the meaning of "POSIX"? - Stack Overflow
Nov 23, 2009 · POSIX, on the other hand, stands for "Portable Operating System Interface" POSIX is a set of standards that define the interface between an operating system and application software.
What exactly is POSIX? - Unix & Linux Stack Exchange
The Open Group is most famous as the certifying body for the UNIX trademark, and its publication of the Single UNIX Specification technical standard, which extends the POSIX standards and is the official …
What is POSIX? Which standards they are? - Stack Overflow
Jan 24, 2014 · To understand POSIX you have to understand UNIX. UNIX was an operating system created in the 1970s and was unique in that many different companies and institutions were free to …
Where can I find official POSIX and UNIX documentation?
I am looking for official documents on all POSIX standards and specifications. I would like to be able t read the docs to get a better understanding of UNIX systems and how they work at a low level...
How do executables use POSIX to keep compatibility between ... - linux
Mar 7, 2024 · In my understanding, POSIX only specifies a set of APIs that the OS needs to provide, but it doesn’t specify the implementation detail, specifically the assembly level compatibility. For …
Newest 'posix' Questions - Stack Overflow
Dec 8, 2025 · POSIX.1-2017 specifies two line-oriented file editing utilities: ed(1) and ex(1). ex is more efficient for noninteractive batch-editing because POSIX requires it to accept one or more file …
Difference between POSIX, Single UNIX Specification, and Open Group ...
What are the differences between POSIX, the Single UNIX Specification, and the Open Group Base Specifications? I think their purpose is for determining if an OS is Unix?
linux - Is Mac OS X a POSIX OS? - Stack Overflow
Apr 26, 2011 · POSIX is a group of standards that determine a portable API for Unix-like operating systems. Mac OS X is Unix-based (and has been certified as such), and in accordance with this is …
Where is the list of the POSIX C API functions? - Stack Overflow
Mar 15, 2018 · 5 Strictly speaking, the definitive list of the POSIX functions is the POSIX standards documents themselves. There's a pretty good introduction to what POSIX is all about, with links to …
System V IPC vs POSIX IPC - Stack Overflow
Jan 3, 2011 · What are the differences between System V IPC and POSIX IPC? Why do we have two standards? How to decide which IPC functions to use?