Мониторинг сайтов на коленке (bash script)

#/bin/bash
html=/var/www/servers_state.html
while true; do
	echo "<br><br><br>" > $html
	echo '<center><table width="40%" border="1" cellspacing="0" cellpadding="5" >' >> $html
	echo "<tr><td></td><td><b>HOST</b></td><td><b>State</b></td></tr>" >> $html
	i=1
	serverlist=(website1.com website2.com website3.com website4.com website4.com)
	for web in "${serverlist[@]}";do
		state=$(HEAD -t 8 $web |sed -n 1p)
		echo "<tr><td>$i</td><td>$ip</td><td>$state</td></tr>" >> $html
		if [ "$state" != "200 OK" ]
		then
						echo "Something is wrong with $ip" |mail -s "Invalid responce from $web" \ yourmail@domain.com
		fi
	let "i = $i +1"
done
echo "</table>" >> $html
echo "<br>" >> $html
echo "<p>Last updated at $(date +%H:%M:%S)</p>" >> $html
echo "</center>" >> $html
sleep 30
done

#/bin/bash

html=/var/www/servers_state.html

while true; do

echo " " > $html

echo '<center><table width="40%" border="1" cellspacing="0" cellpadding="5" >' >> $html

echo "<tr><td></td><td>HOST</td><td>State</td></tr>" >> $html

i=1

serverlist=(website1.com website2.com website3.com website4.com website4.com)

for web in "${serverlist[@]}";do

state=$(HEAD -t 8 $web |sed -n 1p)

echo "<tr><td>$i</td><td>$ip</td><td>$state</td></tr>" >> $html

if [ "$state" != "200 OK" ]

then

echo "Something is wrong with $ip" |mail -s "Invalid responce from $web" \ yourmail@domain.com

let "i = $i +1"

done

echo "</table>" >> $html

echo " " >> $html

echo "Last updated at $(date +%H:%M:%S)" >> $html

echo "</center>" >> $html

sleep 30

done

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