#!/bin/sh

t=0

first_check ()
{
timestamp=`/usr/bin/find /opt/backup/mysql_hourly/* -mmin -65 | wc -l`
if [ $timestamp -ne "0" ]
then
        echo "Actual file exists" 1> /dev/null
        size=`/usr/bin/find /opt/backup/mysql_hourly/* -size -250k | wc -l`
        if [ $size -eq "0" ]
        then
                echo "Backup is working" 1> /dev/null
                t=1
        else
                echo "Backup has failed - filesize < 250k" 1> /dev/null
        fi
else
echo "Backup has failed - file timestamp > 65 minutes" 1> /dev/null
fi
}

second_check ()
{
timestamp=`/usr/bin/find /opt/backup/mysql_hourly/* -mmin -65 | wc -l`
if [ $timestamp -ne "0" ]
then
        echo "Actual file exists" 1> /dev/null
        size=`/usr/bin/find /opt/backup/mysql_hourly/* -size -250k | wc -l`
        if [ $size -eq "0" ]
        then
                echo "Backup is working" 1> /dev/null
        else
                echo "`date` Backup has failed - filesize < 250k" >> /var/log/test_backup_errorlog
        fi
else
echo "`date` Backup has failed - file timestamp > 65 minutes" >> /var/log/test_backup_errorlog
fi
}

inuse=1

while [  $inuse -ne "0" ]
do
        inuse=`lsof +D /opt/backup/mysql_hourly/ | wc -l`

        if [ $inuse -eq "0" ]
        then
        first_check

                if [ $t -eq "0" ]
                then
                second_check
                else
                echo "Backup is working" 1> /dev/null
                fi
        fi
sleep 20
done