Here's a few commands for adding packages
First, update the repos like so:
sudo apt-get update
# This updates your package repositories
sudo apt-get upgrade
# This part is optional, but should be done at your convenience
sudo apt-get install package name
# replace package name
with the actual pack name to be installed.
sudo apt-cache search package name
# This command will search for a given package
Note: If you're not comfortable wit the command line, ubuntu also has a GUI package manager.
How to setup Network Printing with ubuntu
Ubuntu supports printer sharing over networks, so you can print from your Ubuntu machine, your Windows machine, etc, to another Ubuntu or Windows machine
that has a printer attached (ie a "Ubuntu print server" or "Windows print server").
Hope this helps and welcome to LQ!