Some info on apt
apt-get install food
apt is a very cool and easy to use package manager for UNIX based systems. Here are some simple and effective commands that might help you do things XD
apt-get update - makes sure that all the information is newest.
apt-get upgrade - checks for all packages that needs to be updated.
<package> - Removes the package from the system.
<package> - Same as remove but deletes all the configuration files.
apt-cache search - This can be useful if you don’t know the package name, e.g “apt-cache search “stats” | more“
<package> - Lists all the packages dependences.
apt-get -u install
<package> - Updates just the specified package.