Linked by Thom Holwerda on Thu 1st May 2008 19:41 UTC
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Member since:
2007-02-17
There is no such thing as the "UNIX" code. You can't copy "UNIX" code into your OS, it does not exists. However, there implementations of the standard that can be called UNIX. Thus, it would be more appropriate (technically, not actually) to say Linux is a copy of AIX, or Linux is a copy of SCO Openserver. Or you could say Linux took System V code. But you cannot say Linux is a copy of UNIX. Unless you are Darl, of course!
Sigh!
Linux is not a copy of AIX, and Linux is not a copy of SCO Openserver, and Linux is not a copy of any UNIX.
Linux is a new codebase, built from the ground up. It is a mostly-compliant implementation of the POSIX standard.
Just like the situation where, even though both Fords and Hondas have petrol-driven engines, a Honda engine is not a copy of a Ford engine, so too is Linux NOT a copy of any other POSIX compliant OS.
Period.
Get this word "copy" right out of your head.
Linux is an mostly-complete re-implementation of the POSIX standard, written by collaboration over the Internet (mostly via mailing lists) starting from the efforts of Linus Torvalds in about 1990.
Edited 2008-05-03 00:55 UTC