POSIX standards

POSIX (Portable Operating System Interface) is a set of technical standards that ensure different operating systems, like Unix and Linux, can work together smoothly. It defines common rules for how these systems handle files, processes, and commands, making software portable and compatible across platforms. Essentially, POSIX acts as a universal language for operating systems, allowing developers to write programs that run consistently regardless of the specific system they're using. This standardization helps improve compatibility, stability, and efficiency across numerous computing environments.