Remove apt cache

#!/bin/bash

sed -i 's/archive.ubuntu.com/mirror.kakao.com/g' /etc/apt/sources.list && apt update && apt install nodejs npm  -y

sed -i 's/archive.ubuntu.com/mirror.kakao.com/g' /etc/apt/sources.list && apt update && apt install nodejs npm  -y && rm -rf /var/lib/apt/lists/*

npm install -g configurable-http-proxy

pip install --upgrade notebook jupyter jupyterlab jupyterhub

useradd -d /home/rhea rhea