Linux script to auto update and compile

[Draximus Prime]

I was wondering if anyone could give me a script for linux that will automatically download the latest stable and development(perhaps from svn?) and then uninstall the previous versions, and reinstall the current ones.
I don't need to check if they're up to date, unless there's an easy way to do that, and i'll just use cron to schedule it daily or maybe weekly.
I might be able to figure it out, but i'm hoping someone else has already done it, because i don't have much experience in bash scripting.(I'm going to work on learning more of it in my free time. )

Thanks for reading, even if you can't help!

P.S. If possible, i'd also like to keep my saves and settings.

[Draximus Prime]

Ok, I figured out with a little help from the internet how to do this. If anyone else needs to do this I have the script attached.
draximus.prime is my username, so that should help in determining what paths to use. Also i just did the svn checkout originally straight from my home directory.(Directions on the svn checkout are in the wiki).

This might not help anyone... but I thought i'd post it here just in case. Oh, and for this you have to have sudo set up to require no password.

P.S. Also, i set this up using cron to automatically run every day.