monitoring_web_page.sh

#!/bin/bash
# This script monitoring a web page, if get any error the error infomation will output to the log file.
# Usage: nohup ./monitoring_web_page.sh http://127.0.0.1 2>&1 >/tmp/monitoring_web_page.log &
SERVER=$1
PAUSE=10
while true 
do
    if curl -s --head $SERVER | grep "200 OK" > /dev/null
    then 
        echo "The HTTP server on $SERVER is up! $(date)" > /dev/null
    else
	echo "The HTTP server on $SERVER is down! $(date)"
    fi
    sleep $PAUSE
done