ubuntu terminal install updates code example

Example 1: update ubuntu in terminal

#gets package(s) update definitions
sudo apt update
#upgrades the package(s) for which update definitions are received
sudo apt upgrade

Example 2: ubuntu update

sudo -- sh -c 'apt-get update; apt-get upgrade -y; apt-get dist-upgrade -y; apt-get autoremove -y; apt-get autoclean -y'