11. Pacman
Package Management utility for arch distros.
sudo pacman -Syu {PACKAGE} # update database (and install package if specified, preferred)
sudo pacman -Syyu # Force update data even if already 'up to date'
sudo pacman -Syuu # enable downgrades
sudo pacman -Ss {SEARCH} # search for a package
sudo pacman -Si {PACKAGE} # show informatio on package
sudo pacman -S {PACKAGE} ... {PACKAGE} # install packages
sudo pacman -R {PACKAGE} # remove package only
sudo pacman -Rs {PACKAGE} # remove package and all dependencies not used by other packages
sudo pacman -Rns {PACKAGE} # remove package and all dependencies not used by other packages, do not save config files
sudo pacman -Qdtq # remove packages with no dependencies (leftover from other packages)
sudo pacman -Qi {PACKAGE} # show information for install package
sudo pacman -Ql # list all currently installed packages