Cache Warmer using sitemap

cachewarmer.sh

#!/bin/bash
# CACHE WARMER script for XML Sitemaps with MULTIPLE SUB-SITEMAPS:
# from: https://gist.github.com/JPustkuchen/f185bee60c5a36211cdf6f1c8f6deebe
# chmod u+x
DOMAIN='https://www.xyz.com'
wget -q $DOMAIN/sitemap.xml --no-cache -O - | egrep -o "$DOMAIN[^<]+" | while read subsite;
do
	echo --- Reading sub-sitemap: $subsite: ---
	wget -q $subsite --no-cache -O - | egrep -o "$DOMAIN[^<]+" | while read line;
	do
		echo $line:
	  time curl -A 'Cache Warmer' -s -L $line > /dev/null 2>&1	  
	done
	echo --- FINISHED reading sub-sitemap: $subsite: ---
done