Ubuntu

General

• Documentation for Ubuntu 14.04 LTS
• Ubuntu 14.04 LTS (Trusty Tahr) Guide

Web Server How To

• About Debian Linux - How to Set Up Debian Linux Internet Server

Package Manager - Apt-Get

• apt-get Man Page
• Ubuntu Packages Web Catalog
• Synaptic - GUI Interface for apt-get.

Commands

sudo apt-get update
sudo apt-get upgrade