How to Update Ubuntu Linux

Command Line Interface

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   Update your repository list. You can do this by pressing Ctrl+Alt+T. Then type in sudo apt-get update. You will be prompted for your root password. All this command does is updates the list of programs in your repository.

   1. Some distros do this automatically.
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   Install upgrades. After apt-get is done, run sudo apt-get upgrade. Again, enter your password and wait 2-3 seconds. You will see a list of packages which should be installed to upgrade.

   1. You can upgrade individual packages as follows: sudo apt-get upgrade firefox.
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   Confirm your command. You will be asked if you want to upgrade those packages, if yes, press Y and hit ↵ Enter. If you don't want to upgrade then press N and press ↵ Enter to abort.
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   Apt-get will now download and install all of these packages. Bear in mind that this can be a very large download, and might take a considerable time, depending on your internet connection speed.