Mysql automated backup

mysql.sh

#!/bin/bash
##########################################################################
#
# mysql_backups.sh: A shell script to back up all MySQL databases in
#                   one shot, nightly, and keep a rolling 3 weeks of
#                   backups hot, online in the backup archive.
#
# Written by David A. Desrosiers
# Contact desrod@gnu-designs.com
# Last updated Jun 27 2012 by Alessandro Feijó @afeijo
#
# Copyright 1998-2007.  This may be modified and distributed on the same
#                       terms as the GPL itself. This copyright header
#                       must remain intact if you use this script.
#
##########################################################################

#####################################
### MySQL Configuration Variables ###
#####################################

#PATH=/usr/local/bin:/usr/bin:/bin 

# MySQL hostname
DBHOST='localhost'

# MySQL username
DBUSER='root'

# MySQL password
DBPASSWD=''

# directory for dump files
LOCALDIR=/var/backups/mysql

#####################################
### Edit Below If Necessary #########
#####################################
cd $LOCALDIR
DATE=`eval date +%Y%m%d-%H%M`

case $1 in
chk) mysqlcheck -u$DBUSER -h$DBHOST -oA; exit 0;; #optimize all dbs
all) DBS=`mysql -u$DBUSER -h$DBHOST -e"show databases"`;;
esac

for DATABASE in $DBS
do
   if [ $DATABASE != "Database" ]; then
      echo "Dumping $DATABASE now..."
      mysqldump -u$DBUSER -h$DBHOST $DATABASE --add-drop-table > ${DATE}_${DATABASE}.sql
   fi
done

gzip -9 *.sql
chmod 644 *gz

# Delete files older than XX days
find $LOCALDIR -mtime +15 -delete