Differences between Unix and Linux

Unix is an operating system developed at AT&T’s Bell Labs. Linux is a clone of Unix, but there are many differences between these two operating systems. Here are the main ones:

Linux – most Linux distributions are free.
Unix – most UNIX systems are not free.

Linux – mobile phones, tablet computers, desktop computers.
Unix – developed mainly for mainframes and servers.

Source model
Linux – open source.
Unix – mostly closed source.

Linux – Ubuntu, Debian, Red Hat, openSUSE.
Unix – OS X, Solaris, IBM AIX.

Linux – Linux kernel is developed by the community.
Unix – IBM, HP, Oracle.

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