ruby one-liner to grab ip address

gistfile1.bash

# os x (copies ip to clipboard)
ifconfig en1 | ruby -ne '$_.match(/inet\s((\d|\.)+)/) { print $1 }' | pbcopy

# ubuntu
# make sure you have xclip: apt-get install xclip
# (also make sure to paste with the middle mouse button...)
ifconfig eth0 | ruby -ne '$_.match(/inet\saddr:((\d|\.)+)/) { print $1 }' | xclip

# wrap it with a function in .bashrc (don't forget the semi-colon)
function ip { COMMAND; }