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Everything about Single UNIX Specification

Standards for operating systems for using the UNIX trademark

The Single UNIX Specification (SUS) is a standard for computer operating systems, compliance with which is required to qualify for using the "UNIX" trademark. The standard specifies programming interfaces for the C language, a command-line shell, and user commands. The core specifications of the SUS known as Base Specifications are developed and maintained by the Austin Group, which is a joint working group of IEEE, ISO/IEC JTC 1/SC 22/WG 15 and The Open Group. If an operating system is submitted to The Open Group for certification and passes conformance tests, then it is deemed to be compliant with a UNIX standard such as UNIX 98 or UNIX 03. Wikipedia →

🧭 Start here: a 6-step reading path

  1. Read the overview: Single UNIX SpecificationA 5-minute orientation
  2. Pick up a classic book: 97 Things Every Programmer Should KnowThe most-reprinted book on the subject
  3. Go sideways: POSIXA closely related topic
  4. Go sideways: Unix-likeA closely related topic

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