update or not?

[william drescher]

On 5/4/2011 11:28 AM, Amichai Rotman wrote:
> Hi Dave,
>
> All it means is that you need to restart the computer after a
> previous upgrade, probably after upgrading the Kernel.
>
> Just open the Terminal and enter the following:
>
> $ sudo apt-get upgrade
>
> enter the password when prompted to do so and enter at the
> question (Y/n/q) - the capital Y means that is the default action
> to be taken when you press the Enter key.
>
> That should clear those upgrades pending messages.
>
> Good Luck!
>

what is the difference between
sudo apt-get update
and
sudo apt-get upgrade
?

bill