www.backup.sh

#!/bin/bash
filename=site_backups/$(date +%Y%m%d).tar.gz
current_log_text=site_backups/$(date +%Y%m%d).txt
is_error=0
WEBROOT=www/
SUBJECT="Website nightly backup failed!"
EMAIL="your_email@example.com"

date >> $current_log_text
echo -e "Synchronizing www directory...\n" >> $current_log_text
rsync -ra --delete $WEBROOT backup_www/ >> $current_log_text
if [ "$?" -ne "0" ]; then
    date >> $current_log_text
    echo -e "Failed to synchronize." >> $current_log_text
    let "is_error += 1"
fi

date >> $current_log_text
echo -e "Zipping most current backup...\n" >> $current_log_text
tar -zcf $filename backup_www/
if [ "$?" -ne "0" ]; then
    date >> $current_log_text
    echo -e "Failed to zip." >> $current_log_text
    let "is_error += 2"
fi

date >> $current_log_text
echo -e "Deleting old backups...\n" >> $current_log_text
find site_backups -type f -mtime +14 -exec rm {} \;
if [ "$?" -ne "0" ]; then
    date >> $current_log_text
    echo -e "Failed to delete old backups." >> $current_log_text
    let "is_error += 4"
fi

date >> $current_log_text
echo -e "Backup complete. Exit ("$is_error")." >> $current_log_text

if [ "$is_error" -gt "0" ]; then
    (echo -e 'Something went wrong with website nightly backup. (Error '$is_error')\n' ; cat $current_log_text) | mail -s "$SUBJECT" "$EMAIL"
    exit $is_error
fi