OS - POSIX (Portable Operating System Interface)
1 - About
POSIX (pronounced /ˈpɒzɪks/ POZ-iks) or “Portable Operating System Interface [for Unix]” is the name of a family of related standards specified by the IEEE (Institute of Electrical and Electronics Engineers) to 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 describes the external characteristics and facilities that are of importance to application developers, rather than the internal construction techniques employed to achieve these capabilities.
The content of the specification includes for instance the following:
- Directory Structure and Devices