Introduction to *nix¶

Module Overview¶

The *nix architecture
Getting around
Command line editors - nano
Command line editors - vim
VSCode

The *nix Architecture¶

OS Arch

OS is a resource manager
Each layer provides an abstraction
Confining scope and protection

A brief history of Linux¶

Hello everybody out there using minix –

I’m doing a (free) operating system (just a hobby, won’t be big and
professional like gnu) for 386(486) AT clones. This has been brewing
since april, and is starting to get ready. I’d like any feedback on
things people like/dislike in minix, as my OS resembles it somewhat
(same physical layout of the file-system (due to practical reasons)
among other things).

I’ve currently ported bash(1.08) and gcc(1.40), and things seem to work.
This implies that I’ll get something practical within a few months, and
I’d like to know what features most people would want. Any suggestions
are welcome, but I won’t promise I’ll implement them 🙂

Linus (torvalds@kruuna.helsinki.fi)

PS. Yes – it’s free of any minix code, and it has a multi-threaded fs.
It is NOT protable (uses 386 task switching etc), and it probably never
will support anything other than AT-harddisks, as that’s all I have :-(.

Built in 1991 as a personal project
Aims to be POSIX compliant
Uses best of SysV and BSD

Distributions¶

Distributions target usage type/end user:

Servers : RedHat Enterprise, Oracle Linux, Ubuntu Server, CentOS, Debian
Desktop: Mint, ArchLinux, Fedora, Ubuntu Desktop
Containers: Alpine, CoreOS, Photon OS
Security: Kali, TAILS, Qubes