Introduction - If you have any usage issues, please Google them yourself
Linux is open source code, which possesses all the features of unix, and POSIX standards-compliant.
Linux operating system, not only widely and used in PC, servers, is also widely used in mobile phones, PDA and other high-end embedded devices.
Linux combines the main derived unix systems (such as SysV, BSD) of advanced technology, so, Linux operating system can run the original Unix system, a variety of applications at the same time, there is also a large number of applications for the open-source developers to use.
Linux kernel code is almost required reading for every software engineer