SHELL

update 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

how to update ubuntu

sudo apt update && sudo apt upgrade -y

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

upgrade ubuntu command line

sudo apt update
sudo apt upgrade

how to update ubuntu from terminal

# for updating the whole OS
apt-get upgrade
# for updating application repositories (from where you download applications)
apt-get update