Matrix is the Netsoc Server running Solaris. Most information given should work on any Unix like system but there will be differences. I have written some documentation for it. If you have any corrections or comments feel free to mail be at bbrazil@netsoc.tcd.ie
Beginners will want to look at the Which Command Do I Use To and the Short Guides
There are also some shell scripts available. As well as How to fix random stuff that annoys Me and the Advanced Tutorials I gave in 2005.