The Single UNIX Specification is a set of standard documents maintained by the Austin Group and published by The Open Group. The current version (3) can be found at Check out the Wikipdia article on The Single UNIX Specification.

The online version of the documents:

PS. The UNIX trademark is registered to The Open Group (see and

Last modified 12 years ago Last modified on Oct 19, 2005, 3:52:55 AM