CAN/CSA-ISO/IEC 9945-4:04

This National Standard of Canada is equivalent to International Standards ISO/IEC 9945-4:2002 / IEEE 1003.1-2001 / The Open Group Technical Standard, Issue 6 (first edition, 2002-12-15). Scope IEEE Std 1003.1-2001 is one of a family of standards known as POSIX. The family of standards extends to many topics; IEEE Std 1003.1-2001 is known as POSIX.1 and consists of both operating system interfaces and shell and utilities. IEEE Std 1003.1-2001 is technically identical to The Open Group Base Specifications, Issue 6, which comprise the core volumes of the Single UNIX Specification, Version 3.