POSIX compliance

Operating system portability

POSIX compliance means adhering to the Portable Operating System Interface standards—a family of specifications defining how Unix-like operating systems should behave.

Software that is POSIX-compliant can run across different systems without modification: The script works on any POSIX-compliant shell.

Full compliance is rare; most systems implement the standards partially or with extensions.

Related

IEEE · macOS · specification · Solaris · grep · Unix · tar · threads · standard · resource management · pipe · fork · stdout · stdin · kernel · signals · terminal · filesystem

Opposites
operating system standards adherence

POSIX compliancenon-standard

Not following established rules

platform-specific · non-compliant · closed ecosystem · backward compatibility

platform ecosystem

POSIX complianceCOM

Serial port designation

DirectX

Family

compliance

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