Ubuntu upgrade commands

Here's some common commands to upgrade the Ubuntu system.

# update the package list from the source
sudo apt-get update

# upgrade the installed packages on the system
sudo apt-get upgrade

# install some new packages
sudo apt-get install [package name, one or many]

# remove packages that no longer needed
sudo apt-get autoremove

# upgrade the update manager
sudo aptitude install update-manager-core

# update to latest release
# -c: check if new release distribution available
# -d: check if upgrading is possible
sudo update-manager -d -c

Hong Kong Linux User Group - 升級 Ubuntu/Kubuntu/Edubuntu/Xubuntu