tmux
tmux ls
tmux new -s $session_name
tmux attach -t $session_name
Ctrl+b d
Ctrl+b p
Ctrl+b n
Ctrl+b c
tmux kill-session -t $session_name
anaconda
conda create --name $name [python=2.7]
conda activate $name
conda install $package
conda remove -n $env_name
virtualenv
virtualenv $venv --python=python3
source $venv/bin/activate
deactivate