Unix/linux System Management Technical manual Read (iv)

2016.8.14 21:40-22:10
1.3 Friction between UNIX and LINUX
1.3 Unix The friction between his Linux
Because They is similar, this book covers both UNIX and Linux systems. Unfortunately, mentioning UNIX and Linux together in the same sentence can sometimes is like stepping into a political min Efield, or perhaps blundering into a large patch of quicksand. But since the relationship between UNIX and Linux seems to engender some confusion as well as animosity, it's hard to Avoi D staking out a position. Here are our perspective and our short version of the facts.
because UNIX and Linux systems are quite similar, this book also explains the management of both systems. Unfortunately, in one sentence with both UNIX and Linux two titles, as if a foot into the political vortex, perhaps also like to fall into a large quagmire. However, since the relationship between UNIX and Linux seems to present some confusion and conflict, it is more difficult to avoid the position of not talking about us. Here's our point of view and our brief description of the facts.
Linux is a reimplementation and elaboration of the UNIX kernel. It conforms to the POSIX standard, runs on several hardware platforms, and are compatible with most existing UNIX software. It differs from Many-but not all-variants of UNIX in that it's free, open source, and cooperatively developed. Linux includes technical advances that does not exist in Unix, so it's more than just a Unix clone. At the same time, traditional UNIX vendors has continued to refine their systems, so there is certainly areas in which C Ommercial UNIX Systems is superior to Linux.
Linux re-implements and optimizes the Unix kernel. Linux follows the POSIX standard and is capable of running on several hardware platforms, compatible with most existing UNIX software. It differs from most, but not all, Unix variants, except that it is free, open-source, and is developed with the selfless dedication of hundreds of different individuals and organizations. At the same time, traditional UNIX vendors continue to improve their systems, so there are certain areas where commercial UNIX systems are stronger than Linux.
Whatever the relative merits of the systems, Linux is a legally, developmentally, and historically distinct entity that CA Nnot properly is referred to as "Unix" or as a "version of UNIX." To-do-is-slight the work and innovation of the Linux community. At the same time, it's somewhat misleading to insist that Linux was "not UNIX." If Your creation walks like a duck and quacks as a duck, you could have invented a duck.
regardless of the relative merits and demerits of the two systems, Linux is clearly different from UNIX in terms of law, development, and history, so it is not possible to refer to Linux as a UNIX or a version of UNIX. Doing so ignores the work and innovation that the Linux community does. It is also a bit misleading to insist that Linux is not UNIX. If you make something like a duck, and you bark like a duck, it may be said that the duck is made! This means that Linux is not considered UNIX because Linux is like UNIX.

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Unix/linux System Management Technical manual Read (iv)