#!/usr/bin/env bash

# Empty user caches
set -x
rm -rf /root/.cache
rm -rf /home/ubuntu/.cache

# Remove compiled pyc files
updatedb
count=$(locate -- *.pyc | wc -l)
i=1
for pyc in $(locate -- *.pyc); do
    rm -rf "$pyc"
    echo -en "\r$((i++)) of $count deleted"
done
echo ""
updatedb

# Empty packages cache
apt clean
apt autoclean
apt update

# Disable Console serial port redirection
sed -i "s/console=ttyS0//g" /etc/default/grub
sed -i "s/console=ttyS0//g" /etc/default/grub.d/*
update-grub

# Set hostname
echo "upstream-training" > "/etc/hostname"
echo "127.0.1.1	upstream-training" >> "/etc/hosts"