how to install skype in ubuntu 13 64 bit

http://askubuntu.com/questions/215298/unable-to-install-skype-on-12-10-64bit

sudo add-apt-repository "deb http://archive.canonical.com/ $(lsb_release -sc) partner"
sudo apt-get update && sudo apt-get install skype

wget http://www.skype.com/go/getskype-linux-ubuntu-64/skype-ubuntu-quantal_4.1.0.20-1_amd64.deb
sudo dpkg -i skype-ubuntu*.deb