Quick way to get a public key into your clipboard.

gistfile1.sh

# Takes a Github Username and copies his/her public key
#
#       ghkey pjaspers
#
function ghkey {
   if (( $# < 1 ))
   then echo "usage: ghkey <username>"; return 1; fi

    curl -sL https://github.com/$1.keys | pbcopy
}