Debian/Ubuntu apt/apt-get cheatsheet

Show upgradable packages

    apt list --upgradable

Allow release upgrade, e.g. 12.2 → 12.3

    apt-get update --allow-releaseinfo-change

Show URL of the package

    apt-get download --print-uris consul

Force use IPv4

    cat << EOF > /etc/apt/apt.conf.d/1000-force-ipv4-transport
    Acquire::ForceIPv4 "true";
    EOF