apt-get zsh
apt-get tmux
apt-get emacs
apt-get nmap
apt-get readline

# python dependencies
apt-get install libreadline5-dev libncursesw5-dev libssl-dev libsqlite3-dev tk-dev libgdbm-dev libc6-dev libbz2-dev
cd ~/Downloads
wget http://python.org/ftp/python/2.7.2/Python-2.7.2.tgz
tar -xvf Python-2.7.2.tgz && cd Python-2.7.2/
./configure
make
sudo make altinstall