Install Package:
sudo apt-get install foo-bar
Remove Package:
sudo apt-get remove foobar
(separate multiple packages by spaces)
Delete package and all whisker files:
sudo apt-get purge foobar
Auto remove from lists:
sudo apt-get autoremove
Be careful when using autoremove because it can potentially remove packages that are important and leave your system inoperable. A better alternative would be:
sudo apt-get clean
Update the Package Index:
sudo apt-get update
Upgrade Packages:
sudo apt-get upgrade
To upgrade entire system:
sudo apt-get dist-upgrade
