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

ubuntu upgrade

sudo apt full-upgrade
update-manager -c
sudo do-release-upgrade

update linux ubuntu

sudo apt-get update -y && sudo apt-get full-upgrade -y && sudo apt-get update -y && sudo apt-get autoremove -y && sudo apt-get update -y

ubuntu update

sudo -s -- <<EOF
apt-get update
apt-get upgrade -y
apt-get dist-upgrade -y
apt-get autoremove -y
apt-get autoclean -y
EOF

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'

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

upgrade ubuntu

sudo do-release-upgrade -d -f DistUpgradeViewGtk3

upgrade ubuntu

# apt  update -y && apt upgrade -y