= 2010-08-13 =

 * [http://www.cyberciti.biz/tips/read-unixlinux-system-ip-address-in-a-shell-script.html Read UNIX/Linux system IP address in a shell script]
{{{
ifconfig  | grep 'inet addr:'| grep -v '127.0.0.1' | cut -d: -f2 | awk '{ print $1}'
}}}
 * [http://www.whatismyip.com/faq/linux-ip-commands.asp Linux IP Commands]
{{{
$ tracepath www.whatismyip.com
# Advanced DNS Test: 
$ dig www.whatismyip.com
# Reverse Lookup: 
host 66.11.119.69
# Advanced Reverse Lookup: 
dig -x 66.11.119.69
}}}