plh-mysql-monitor.sh

#!/bin/bash

MYSQL_RUNNING=0

function checkMysql {
  /usr/sbin/service mysql status | grep Uptime
  if [ "$?" == 0 ]; then
    MYSQL_RUNNING=1
  fi
}

checkMysql


if [ "$MYSQL_RUNNING" == 0 ]; then
  echo 'MySQL is down'
  /usr/sbin/service mysql start
  checkMysql
  if [ -a /root/.mysql-monitor ]; then
    if [ "$MYSQL_RUNNING" == 0 ]; then
      echo 'MySQL is down and failed to be restarted' | mail steve@steverobbins.com -s 'Prince Lion Heart MySQL has stopped'
    else
      echo 'MySQL is down but was restarted successfully' | mail steve@steverobbins.com -s 'Prince Lion Heart MySQL has stopped'
    fi
    rm -rf /root/.mysql-monitor
  fi
else
  echo 'MySQL is up'
  date > /root/.mysql-monitor
fi