Pacman

pacman is the package manager used by Arch Linux. More information is here

Upgrade System / Sync

pacman -Syu

Search for a package

This searches through package names and descriptions

pacman -Ss ${SEARCH_STRING}

Install a package

pacman -S ${PACKAGE_NAME}

Remove a package

This command will remove the package and any dependencies that are no longer required by anything.

pacman -Rs ${PACKAGE_NAME}

This command will just remove the specified package

pacman -R ${PACKAGE_NAME}