set -x

USER=$1

if [ "$USER" == "root" ]
then
	USER_DIR='.'
else
	USER_DIR="/home/$USER"
	sudo useradd -m $USER
	sudo usermod -s /bin/bash $USER
fi

sudo mkdir $USER_DIR/.ssh
cat authorized_keys | sudo tee -a $USER_DIR/.ssh/authorized_keys

sudo chown $USER $USER_DIR/.ssh $USER_DIR/.ssh/*
sudo chgrp $USER $USER_DIR/.ssh $USER_DIR/.ssh/*
sudo chmod 0700 $USER_DIR/.ssh
sudo chmod 0644 $USER_DIR/.ssh/authorized_keys
sudo chmod 0700 $USER_DIR