Backup Mysql Databases to seperate files, delete older than x minutes

#!/bin/bash

# Enter the names of the dbs to be backup 
# Example: DBONLY=("database1" "cphulkd")
# If you want to backup all
# Example: DBONLY=()
DBONLY=("database1" "cphulkd")

# Enter minutes for file deletetion older than X
# Example 10 Minutes: DELFILESOLDERTHANMIN="10"
# If you do not want to delete
# Example:  DELFILESOLDERTHANMIN="0"
DELFILESOLDERTHANMIN="36000"

DATE=`date +%Y%m%d_%H%M%S`
USER="root"
PASSWORD=""
OUTPUTDIR="/mysql_backup"
MYSQLDUMP="mysqldump"
MYSQL="mysql"

# -----------------------------------
# END CONFIGURATION DO NOT EDIT BELOW
# -----------------------------------

databases=`$MYSQL --user=$USER --password=$PASSWORD -e "SHOW DATABASES;" | tr -d "| " | grep -v Database`

lendbonly=${#DBONLY[*]}

# dump each database in turn

echo "BACKING UP DATABASES…"

for db in $databases; do
ISDUMP="0"
if [ "$lendbonly" -gt "0" ]
then
if containsElement $db "${DBONLY[@]}" = 1
then
ISDUMP="1"
fi
else
ISDUMP="1"
fi

 if [ "$ISDUMP" -eq "1" ]
  then
  echo $db " -> " "$OUTPUTDIR/$db-$DATE.sql.gz"
  $MYSQLDUMP --force --opt --user=$USER --password=$PASSWORD --databases $db | gzip > "$OUTPUTDIR/$db-$DATE.sql.gz";
 fi




    
done
echo
echo

if [ "$DELFILESOLDERTHANMIN" -gt "0" ]
 echo "DELETING FILES OLDER THAN " $DELFILESOLDERTHANMIN " MINUTES…"
 then 
 # clean up any old backups - save space
 find "$OUTPUTDIR"/*.gz -type f -mmin "+$DELFILESOLDERTHANMIN" | while read FILENAME
 do
  rm -f "$FILENAME"
  echo "Deleting file: " $FILENAME
 done
fi
echo "DONE"
echo

containsElement () { for e in "${@:2}"; do [[ "$e" = "$1" ]] && return 0; done; return 1; }