Would you like to know your IP address for a script? There are quite a few websites that will display your IP address, but when writing script for any sort of automation, you don't want to do a lot of screen-scraping.
Try this one:
http://automation.whatismyip.
Regardless of what website you find that works, to grab the address in a bash script, use curl. Something like this will do...
IP=`/usr/bin/curl -s http://automation.whatismyip.
