Package Managers

Pacman (Arch Linux)

Sync package database on the system:

pacman -Sy

List packages with available updates:

pacman -Qu

Perform a system update:

pacman -Syu

Install a specific package:

pacman -S <package_name>

Lists the installed packages on the system with sizes:

pacman -Qi | awk '/^Name/{name=$3} /^Installed Size/{print $4$5, name}' | sort -h

Counts the number of installed packages on system:

pacman -Qi | awk '/^Name/{name=$3} /^Installed Size/{print $4$5, name}' | sort -h | wc -l

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APT (Debian/Ubuntu)

Update the systems package database:

apt update

Install a specific package:

apt install <package_name>

List packages with updates:

apt list -u

List installed packages on the system:

apt list -i

Upgrade packages on system:

apt upgrade