* An easy way to get info, example your public ip, hostname...
* Can be used in scripts that example need the public ip, like whatismyip.com. But this site is only showing the ip, no html at all!

If you are using Linux, you can use this in your bash scripts. To get your public ip in a variable just type;
Curl: $ip = `curl ip.boa.nu`
wget: $ip = `wget -O - -q ip.boa.nu`
or the easyone, lynx :) : $ip = `lynx --dump http://ip.boa.nu|sed -e 's/^[[:space:]]*//' -e 's/*[[:space:]]$//'|grep -v ^$`