#!/bin/bash

set -e
set -u
set -o pipefail

crontab -l | awk '/#BETWEEN#/ {flag=1;print;next} /#HERE#/ {flag=0} flag {if ($0 ~ /^#/) print substr($0, 3); else print $0 } !flag {print}' | crontab -
crontab -l > ~/crontab.out
