Geektool rocks. There's not much more to it. If you're running OS X without it, you're missing out. Go get it. But it does have one shortcoming - it comes with almost nothing preset, so if you want to do useful shit with it, you have to figure out how to do it. Anyway, I just wanted to stick this topic here as a place to put useful things you found to do, other than the console.log thing that Geektool comes with. Enjoy and contribute, folks!

To display my uptime (with the date/time cut out because I display that using straight up "date") I have:

I also use a top function to display to processes eating up the most CPU:

This displays my internal and external IP addresses and the status of my Airport and ethernet connections:

Also, I had an applescript to display what was playing in iTunes, but for some reason it would screw with Exposé, so I trashed it. I'll dig that up and post that here later.

I was also wondering, actually, if anyone had a terminal command to display the CPU usage, network throughput, used/available RAM, CPU/GPU temperature, laptop battery life, et cetera... If you know any of those, post that here, I'd like to see it.

Use, enjoy and share, folks. Later.

I do like GeekTool. Unfortunately it crashes constantly, and needs to be restarted.

I use it to grab weather maps off of the internet and put them on my desktop. Gives me an idea of precipitation and temperatures in my area. I also use it to monitor my various network connections, logs, and a webcam.