Quote:
Originally Posted by Astro_Bot
Linux has/had nothing to do with Mac, OS/2 or IBM nor was it derived from Unix.
Later, many utilities and programs were ported to Linux from other sources, some from Unix, which is why some people think Linux and Unix were closely related.
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Linux and Unix *are* closely related at the original design level. The kernel API for Linux was based on Unix system calls. That's why it is possible to port most Unix and GNU applications fairly trivially.