Linux

History, characteristics, distributions

Linnaeus University

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## The history of linux... * Starts with POSIX...UNIX * 1970s, Bell Labs * Ken Thompson, Dennis Ritchie * Universities and commercials * Berkley UNIX - BSD(Berkley Standard Distribution) * Lots of UNIX-dialects, some free of charge, some not * 1987, MINIX, Andrew S. Tanenbaum * UNIX-like system for education * Nominal fee (included in Tanenbaum's book) * MINIX + GNU C Compiler(ggc) where Linux was born
![unix](./images/unix.png)
## The thing about Linux * GNU C compiler from GNU/Unix * Linux kernel, GNU General Public license * Open source project * https://groups.google.com/forum/?hl=en#!msg/comp.os.minix/dlNtH7RRrGA/SwRavCzVE7gJ
## Linux today * Distributions (Linux kernel + software) * [Debian GNU/Linux](https://www.debian.org/releases/jessie/amd64/ch01s03.html.en) * [Ubuntu](https://www.ubuntu.com/) - Fork of debian * [Red Hat Enterprise Linux](https://www.redhat.com/en/technologies/linux-platforms/enterprise-linux) * [CentOS](https://www.centos.org/) - Free variant of RHEL * [SUSE Linux](https://www.suse.com/) / [OpenSUSE](https://www.opensuse.org/) * ... * https://distrowatch.com/ * Server versions vs. Desktop versions * Embeded systems, desktop, servers, mobile
## DEMO * Kicking of a vagrant Ubuntu server * Kicking of a vagrant centOS server