Applescript tutorial 11, Using GeekTool
GeekTool is a Preference Pane (System Preferences module) for Mac OS X. It lets you display various types of information directly on you desktop. The information can be derived from a shell script or using osascript it is possible to call applescripts (or any other OSA language scripts).
I first became aware of Geektool when read this tip on Macosxtips and it would certainly be worth looking at to get an idea of what it can be used for.
In this tutorial I'll use a couple of simple commands to create desktop content, and then link to Applescripts to create more complex content.