how to upgrade ubuntu version from terminal code example

Example 1: how to update ubuntu

sudo apt update && sudo apt upgrade -y

Example 2: upgrade ubuntu command line

sudo apt update
sudo apt upgrade

Example 3: upgrade ubuntu

sudo apt update && sudo apt upgrade -y
#or use it seperately
sudo apt update
sudo apt upgrade
#you make wanna run below command to remove unwanted
#and free up some space
sudo apt autoremove