What is Linux? How is it different from UNIX?


Posted On: Feb 22, 2018


Linux is free open source multi-user operating system that is built on Linux kernel. Linus Torvalds released the first version of Linux operating system on September 17, 1991.

Some Difference between Linux and Unix Operating System:

Linux is open source anyone can use it free of cost.  UNIX is copyrighted only big companies like IBM AIX and Sun Solaris and HP-UX use it
Linux is just a kernel.   Unix is a complete operating system
By default, Linux supports and use ext3 or ext4 file systemsUnix comes with jfs, gpfs (AIX), jfs, gpfs (HP-UX), jfs, gpfs (Solaris) filesystems
Linux Redhat Enterprise, Fedora Linux, Debian Linux, Suse Enterprise Linux, Ubuntu Linux are some popular Linux OS.   HP-UX, IBM AIX, Sun Solaris, Mac OS X are some Unix based operating systems
Linux is considered as most user-friendlyApple OS X is most popular UNIX operating system for desktop usage.

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