#!/bin/bash
set -euo pipefail

(
	set -euo pipefail
	flock -x -w 10 200 || exit 1

	export PATH=/usr/local/sbin:/usr/local/bin:/usr/sbin:/usr/bin:/sbin:/bin

	echo started backup cronjob
	ionice -c 3 -p$$
	nice -n 19 backup-full
	echo finished backup cronjob

) 200>/var/lock/backup-cronjob.lock | logger -t "backup-cronjob"