Today when I deployed my server along with the web application files I stumbled across an issue, how am I supposed to work with the files inside the server while still running the web app? Well that's when I found screen. A tool that saved my life, screen lets you do multiple things at the same time, so you can run something while also browsing through files and editing your code. http://aperiodic.net/screen/quick_reference
EDIT: I know for a fact that a hand full booter sites is actually using it for handling multiple boots at the same time.