Differences between Unix and Linux operating systems

Article Title: differences between Unix and Linux operating systems. Linux is a technology channel of the IT lab in China. Includes basic categories such as desktop applications, Linux system management, kernel research, embedded systems, and open source.

Is Unix the same operating system as Linux? Yes, no. Maybe this answer is self-contradictory, but it is a reasonable answer. In subsequent articles, I will analyze the differences between Unix and Linux. If you are interested in this topic, please pay attention to my subsequent articles.

1. The source code of Unix and Linux is different.

Although Unix and Linux have many identical commands, their source code is different. That is to say, many design concepts of Unix systems have been adopted during the development of Linux operating systems, and the POSIX specifications of Unix operating systems have been followed. However, it does not use the source code of the Unix operating system and does not use the running mode of the Unix operating system. In this regard, the two of them are different operating systems.

Now the Unix operating system is commercialized, and its source code is protected. This means that no social group or individual can copy or modify the source code of the Unix operating system at will. In Linux, the source code is rewritten, so there is no copyright restriction. As long as you follow certain specifications, you can change or copy the source code of Linux. It does not involve copyright issues. Therefore, Linux is a real open-source operating system.

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