Bash shell script file to test websites availability and email if status is offline

websites-tester.sh

#!/bin/bash
# This script made in centos - you may need to change the command above according to your system

# ------------------------------------------
# Website status checker.
# save all websites to check in file named 'websites.txt'. each in new line.
# end file with empty line.
# ------------------------------------------

# Quiet mode. enable to disable echo's command. for crontab, etc.
QUIET=false
# Send mail in case of failure to:
EMAIL=youremail@another.world
LISTFILE=websites.txt

function test {
  if wget $1 -q --spider
  then
    if [ "$QUIET" = false ] ; then
      echo "website up"
    fi
  else
    if [ "$QUIET" = false ] ; then
      echo "website down"
    fi
    # Disable the mailx and enable mail if you don't have mailx installed.
    # using mail command
    #mail -s "$p WEBSITE DOWN" "$EMAIL"
    # using mailx command
    echo "$p WEBSITE DOWN" | mailx -s "$1 WEBSITE DOWN" $EMAIL
  exit
fi
}

while read p; do
  if [ "$QUIET" = false ] ; then
    echo $p
  fi
  test $p
done < $LISTFILE

websites.txt

www.example.com
www.example.net
www.example.org