Cron script to back up a database daily

dbbackup.sh

#!/bin/bash
# Database connection info
user=ssh_username
password=ssh_password
host=ssh_host
db=ssh_database

# Filename settings
path=~/dbbackups/
name=dbbackup`date +%y%m%d`.sql.bz2
link=dbbackup.sql.bz2

# Dump and bzip the databases
mysqldump --add-drop-table \
	--user=$user --password=$password --host=$host \
	--databases $db \
	| bzip2 > $path$name

# Symlink the newest backup to a static filename
ln -sf $path$name $path$link

# Delete backups older than a week
find $path -name "*.sql.bz2" -mtime +7 -type f -delete