Script for initial configuration of a clean Linux (read 'Ubuntu') host

init_remote_linux.sh

#! /bin/bash

set -xe

export NEW_USER=murat
export GITHUB_LOGIN=mxwell
export HOST_NAME=REMOTE

export NEW_HOME=/home/$NEW_USER
sudo useradd -s "/bin/bash" $NEW_USER
sudo adduser $NEW_USER sudo
echo "$NEW_USER ALL=(ALL) NOPASSWD:ALL" | sudo tee -a /etc/sudoers.d/90-cloud-init-users
sudo mkdir -p $NEW_HOME/.ssh
wget -O - "https://github.com/${GITHUB_LOGIN}.keys" | sudo tee -a $NEW_HOME/.ssh/authorized_keys
TMUX_CONF=$NEW_HOME/.tmux.conf
echo "set-option -g prefix C-a" | sudo tee -a $TMUX_CONF
echo "set-option -g set-titles on" | sudo tee -a $TMUX_CONF
echo "set-option -g set-titles-string ${HOST_NAME}" | sudo tee -a $TMUX_CONF
sudo chown -R $NEW_USER:$NEW_USER $NEW_HOME