What is the relationship between linux and unix

##The close relationship between UNIX and Linux (Recommended learning: linux operation and maintenance)

The relationship between the two is not that of elder brother and younger brother. It is more appropriate to say "UNIX is the father of Linux".

The reason why I want to introduce their relationship is to tell readers that Linux and UNIX actually have a lot in common when learning. To put it simply, if you are already proficient in Linux, then start using UNIX It will be very easy.

There are also two big differences between the two:

UNIX systems are mostly matched with hardware, that is to say, most UNIX systems such as AIX and HP-UX etc. cannot be installed on x86 servers and personal computers, while Linux can run on a variety of hardware platforms;

UNIX is commercial software, while Linux is open source software, which is free and open source code.

Linux is loved by computer enthusiasts for two main reasons:

It is open source software, and users can obtain it without paying any fees. Its source code, and you can make necessary modifications to it according to your own needs, use it free of charge, and continue to spread it without restrictions;

It has all the functions of UNIX, and anyone who uses the UNIX operating system or wants to learn UNIX Anyone who owns an operating system can benefit from Linux.

Open source software is a model different from commercial software. Literally, it means open source code. You don’t have to worry about any tricks in it. This will bring about software innovation and security.

In addition, open source does not actually mean free, but a new software profit model. Currently, many software are open source software, which has a profound impact on the computer industry and the Internet.

The models and concepts of open source software are relatively obscure. This set of "Linux Tutorials" is designed to guide readers in the application of Linux, and everyone can understand it briefly.

In recent years, Linux has been outperforming the blue, developing at an extraordinary speed, from an ugly duckling to a truly excellent and trustworthy operating system with a huge user base. The wheel of history has made Linux the best inheritor of UNIX.

Summarize the relationship/difference between Linux and UNIX

Linux is an operating system similar to Unix. Unix is ​​earlier than Linux. The original intention of Linux is to replace UNIX. And optimize functions and user experience, so Linux imitates UNIX (but does not plagiarize UNIX source code), making Linux very similar to UNIX in appearance and interaction.

You may be criticized for imitation, but you can also say micro-innovation or improvement.

Compared with UNIX, the biggest innovation of Linux is that it is open source and free, which is the most important reason for its vigorous development; while most of the current UNIX is paid, which is unaffordable for small companies and individuals.

It is precisely because Linux and UNIX are inextricably linked that people call Linux a "UNIX-like system".

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