Linux and Unix commands, information, and help

UNIX / Linux Tutorial for Beginners A beginners guide to the Unix and Linux operating system. Eight simple tutorials which cover the basics of UNIX / Linux commands. Introduction to the UNIX Operating System What is UNIX? Recommended UNIX and Linux books If you wish to continue learning Unix, here is a list of good Unix and Linux books, ranging from beginners to advanced.

Difference Between Linux and UNIX What is the difference between Linux and UNIX operating systems? UNIX is copyrighted name only big companies are allowed to use the UNIX copyright and name, so IBM AIX and Sun Solaris and HP-UX all are UNIX operating systems. The Open Group holds the UNIX trademark in trust for the industry, and manages the UNIX trademark licensing program. Most UNIX systems are commercial in nature. Linux is a UNIX Clone But if you consider Portable Operating System Interface (POSIX) standards then Linux can be considered as UNIX. Linux is a Unix clone written from scratch by Linus Torvalds with assistance from a loosely-knit team of hackers across the Net. However, "Open Group" do not approve of the construction "Unix-like", and consider it misuse of their UNIX trademark. Linux Is Just a Kernel Linux is just a kernel. As I said earlier Linux is just a kernel and Linux distribution makes it complete usable operating systems by adding various applications. License and cost User-Friendly File Systems