Ubuntu14.04にtmux2.0をインストール

http://stackoverflow.com/questions/25940944/ugrade-tmux-from-1-8-to-1-9-on-ubuntu-14-04

sudo apt-get update
sudo apt-get install -y python-software-properties software-properties-common
sudo add-apt-repository -y ppa:pi-rho/dev
sudo apt-get update
sudo apt-get install -y tmux=2.0-1~ppa1~t|