Comparison of Commercial and Derivative Versions of UNIX
As described in the preceding section, because of the common heritage of many of today's operating environments, there are inherently more similarities than differences between versions of UNIX. However, that is not to say that they provide similar functionality or even similar internals. In this section, we investigate some of the specific technical differences you will encounter when migrating between some of the families of UNIX implementations.
UNIX Standards
UNIX implementations diverge in many fundamental and not-so-fundamental ways. This divergence has led to compatibility issues that many people refer to as the “splintering” of UNIX. Variations in the different file systems, networking ...
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