HTTP errors regular email report

httpd-errors.sh

#!/bin/bash
#
# cron ex: 1 0 * * * /usr/bin/nice -n 19 /usr/bin/ionice -c2 -n7 /root/scripts/httpd-errors.sh >> /root/scripts/cron.log

email=""
dir="/tmp/"
file="/var/log/httpd/*/error.log"

cd $dir

if [ -f ./script-httpd-errors ]
then
        if [ -f ./script-httpd-errors-last ]
        then
                rm ./script-httpd-errors-last
        fi

        mv ./script-httpd-errors ./script-httpd-errors-last
        touch ./script-httpd-errors
        chmod -R 777 ./script-httpd-errors
else
        touch ./script-httpd-errors
        chmod -R 777 ./script-httpd-errors
fi

cat $file > ./script-httpd-errors

if [ -f ./script-httpd-errors-last ]
then
        if diff ./script-httpd-errors ./script-httpd-errors-last >/dev/null ;
        then
                rm ./script-httpd-errors
        else
                contain=$(diff ./script-httpd-errors ./script-httpd-errors-last)
                echo -e "HTTPD report (errors.log):\n $contain" | mail -s "HTTPD report (errors.log)" $email
        fi
fi