Here's a collection of interesting links that might be useful to you
when working on your assignments:
This is a simple introduction to Unix
from the CS Department website. Go through the list of commands in this
page to get a feel for working in Unix/Linux.
These are short introductory courses
given at the CS Department for new students every year. Check out the
course notes for Emacs, Unix Intro and Permissions. It'll help working
through your assignments.
Home page of the center where the CAVE
is. Has help for tracker/projector problems, documentation, machine
specs, etc.