monitor url with curl

monitor.sh

#!/bin/bash

# This creates a CSV file that can be uploaded to Google Docs where you can insert a chart to graph the values

LOG_FILE=/var/log/url_monitor.log

if [ ! -f $LOG_FILE ]; then # add CSV column headers
  echo Date,Total Time,Redirect Time,DNS Lookup,Connect,App Connect,Pretransfer,starttransfer,Status Code > $LOG_FILE
fi

/usr/bin/curl -L -w "$(date),%{time_total},%{time_redirect},%{time_namelookup},%{time_connect},%{time_appconnect},%{time_pretransfer},%{time_starttransfer},%{http_code}\n" -o /dev/null -s "https://example.com/monitor" >> $LOG_FILE