pacman —sync

Arch Linux package manager utility. See also: pacman. More information: https://manned.org/pacman.8.

• Install a new package:

sudo pacman -S package

• [S]ynchronize and refresh ([y]) the package database along with a sys[u]pgrade (add --downloadonly to only download the packages and not update them):

sudo pacman -Syu

• Update and upgrade all packages and install a new one without prompting:

sudo pacman -Syu --noconfirm package

• Search (s) the package database for a regular expression or keyword:

pacman -Ss "search_pattern"

• Display information about a package:

pacman -Si package

• Overwrite conflicting files during a package update:

sudo pacman -Syu --overwrite path/to/file

• Synchronize and update all packages, but ignore a specific package (can be used more than once):

sudo pacman -Syu --ignore package

• Remove not installed packages and unused repositories from the cache (use the flags Scc to [c]lean all packages):

sudo pacman -Sc