Get install update on ubuntu

Keep your ubuntu always updates, there are lot many third party and supported application & security updates which keeps on coming day by day for ubuntu so please keep your system updated always.
Try i run update command once in a day to stay updated

To update the repositories:

  sudo apt-get update

To update the packages of the currently installed version

  sudo apt-get upgrade

To upgrade the newest version

  
sudo apt-get dist-upgrade

Otherwise there is another very easy way to update your ubuntu
simply go to
System>Administration>Update Manager
and check for updates, press install button if any update is available :-)