4: Install font
wget https://github.com/powerline/fonts/raw/master/LiberationMono/Literation%20Mono%20Powerline.ttf -O ~/.fonts/Liberation\ Mono\ Powerline.ttf
wget https://github.com/powerline/fonts/raw/master/LiberationMono/Literation%20Mono%20Powerline%20Bold.ttf -O ~/.fonts/Liberation\ Mono\ Powerline\ Bold.ttf
wget https://github.com/powerline/fonts/raw/master/LiberationMono/Literation%20Mono%20Powerline%20Italic.ttf -O ~/.fonts/Liberation\ Mono\ Powerline\ Italic.ttf
wget https://github.com/powerline/fonts/raw/master/LiberationMono/Literation%20Mono%20Powerline%20Bold%20Italic.ttf -O ~/.fonts/Liberation\ Mono\ Powerline\ Bold\ Italic.ttf
5 : Apply font
fc-cache -vf ~/.fonts