linux maintenance

update.sh

function update() {
	(
		function print_time() {
			echo "[$(date '+%H:%M:%S')] - $1"
		}

		function get_space() {
			df --output=used,avail -B1 / | tail -n1
		}

		read used_before avail_before < <(get_space)

		print_time "apt update"
		apt-get update -y > /dev/null

		print_time "apt full-upgrade"
		apt-get full-upgrade -y > /dev/null

		print_time "apt autoremove"
		apt-get autoremove --purge -y > /dev/null

		print_time "apt clean"
		apt-get clean -y > /dev/null

		if command -v journalctl &> /dev/null; then
			print_time "journalctl vacuum"
			journalctl --vacuum-time=7d > /dev/null
		fi

		if command -v docker &> /dev/null; then
			print_time "docker builder prune"
			docker builder prune --all --force > /dev/null

			print_time "docker volume prune"
			docker volume prune --all --force > /dev/null

			print_time "docker network prune"
			docker network prune --force > /dev/null

			print_time "docker image prune"
			docker image prune --all --force > /dev/null

			print_time "docker system prune"
			docker system prune --all --force --volumes > /dev/null

			for cid in $(docker ps -q); do
				print_time "docker clean container $cid..."
				docker exec -i "$cid" sh -c "rm -rf /tmp/* /tmp/.[!.]* /tmp/..?* /var/tmp/* /var/tmp/.[!.]* /var/tmp/..?*" > /dev/null
			done
		fi

		print_time "clean old logs"
		find /var/log -type f -name "*.log" -mtime +14 -delete > /dev/null

		print_time "clean olg /tmp"
		find /tmp -type f -atime +7 -delete > /dev/null

		print_time "clean olg /var/tmp"
		find /var/tmp -type f -atime +7 -delete > /dev/null

		read used_after avail_after < <(get_space)

		freed=$((used_before - used_after))
		freed_human=$(numfmt --to=iec $freed)

		print_time "completed, freed: $freed_human"
	)
}