- How to do the most basic things
How to search for a package: sudo pacman -Ss packagename
How to install a package: sudo pacman -S packagename
How to update: sudo pacman -Syu
How to remove a package: sudo pacman -Rcns packagename
How to clean old packages: sudo pacman -Sc --noconfirm
Arch linux installer (official): archinstall
...and that is (pretty much) all you need to learn to use Arch linux in an acceptable fashion. Now go ahead and give it a spin -- you'll love it.