Para instalar o Skype, adicione o Repositório de Parceiros da Canonical.Abra o terminal e execute os seguintes comandos:
sudo apt-add-repository "deb http://archive.canonical.com/ $(lsb_release -sc) partner"
sudo apt-get update
Instale o Skype no Ubuntu 32bits:
wget -O skype.deb http://download.skype.com/linux/skype-ubuntu_4.0.0.8-1_i386.deb
sudo apt-get install libxss1
sudo dpkg -i skype.deb
sudo apt-get -f install
Instale o Skype no Ubuntu 64 bits:
wget -O skype.deb http://download.skype.com/linux/skype-ubuntu_4.0.0.8-1_amd64.deb
sudo apt-get install libxss1 lib32stdc++6 lib32asound2 ia32-libs libc6-i386 lib32gcc1
sudo dpkg -i skype.deb
sudo apt-get -f install