Bash script to make MySQL back-ups

This simple but effective script makes a back-up of the target SQL database and deletes databases older then 90 days. I keep the folder synchronized with other systems so the customer can reach his database with 90 days retention himself.

#!/bin/bash

cd /backups

user="mysql_user"
passwd="password"
host="localhost"
db_name="mysql_database"

backup_path="/backups"
date=$(date +"%d-%b-%Y")

umask 177

# dump the database
mysqldump --user=$user --password=$passwd --host=$host $db_name > $backup_path/$db_name-$date.sql

# zip contents
zip $db_name-$date.zip $db_name-$date.sql

# remove old backups
find $backup_path/* -mtime +90 -exec rm {} \;

echo done

Of course, instead of setting the username/passwd variables in the script itself you can read the DirectAdmin credentials with:

source /usr/local/directadmin/conf/mysql.conf