POSIX

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POSIX stands for Portable Operating System Interface which is the collective name of a family of related standards to provide for the portability of source code applications where operating systems services are required. POSIX is based on the UNIX Operating System, although the standard can apply to any operating system.

At this point, POSIX documentation is divided in three parts:

  • POSIX Kernel APIs (which include extensions for POSIX.1, Real-time Services, Threads Interface, Real-time Extensions, Security Interface, Network File Access and Network Process-to-Process Communications)
  • POSIX Commands and Utilities (with User Portability Extensions, Corrections and Extensions, Protection and Control Utilities and Batch System Utilities)
  • POSIX Conformance Testing
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