Install packages pacman -S package_name1 package_name2 ... Remove an installed package pacman -R package_name To remove a package and its dependencies which are not required by any other installed package pacman -Rs package_name Upgrading packages S stands for sync y is for refresh (local cache) u is for system update pacman -Syu Use pacman to search for packages pacman -Ss string1 string2 ... T..