Automatic mysql backup ---- aspbiz

I wrote a Mysql backup script. Let's see what's wrong.
This is the first Shell script I wrote,
I can send it to anyone who needs it.
You can put this script into crontab and execute it once every morning to automatically back up data.
This script can be executed only once a day, and only the backups of the last five days are retained on the server.
Code:
[Code]
#! /Bin/bash
# This is a ShellScript For Auto DB Backup
# Powered by aspbiz
#2004-09
# Setting
# Set the database name, database login name, password, backup path, Log Path, data file location, and backup mode
# By default, the backup method is tar, mysqldump, or mysqldotcopy.
# By default, log on to the mysql database with root (empty) and back up to/root/dbxxxxx. tgz
DBName = mysql
DBUser = root
DBPasswd =
BackupPath =/root/
LogFile =/root/db. log
DBPath =/var/lib/mysql/
# BackupMethod = mysqldump
# BackupMethod = mysqlhotcopy
# BackupMethod = tar
# Setting End
NewFile = "$ BackupPath" db $ (date + % y % m % d). tgz
DumpFile = "$ BackupPath" db $ (date + % y % m % d)
OldFile = "$ BackupPath" db $ (date + % y % m % d -- date = '5 days ago '). tgz
Echo "-----------------------------------------"> $ LogFile
Echo $ (date + "% y-% m-% d % H: % M: % S") >>$ LogFile
Echo "--------------------------"> $ LogFile
# Delete Old File
If [-f $ OldFile]
Then
Rm-f $ OldFile >>$ LogFile 2> & 1
Echo "[$ OldFile] Delete Old File Success! ">>> $ LogFile
Else
Echo "[$ OldFile] No Old Backup File! ">>> $ LogFile
Fi
If [-f $ NewFile]
Then
Echo "[$ NewFile] The Backup File is exists, Can't Backup! ">>> $ LogFile
Else
Case $ BackupMethod in
Mysqldump)
If [-z $ DBPasswd]
Then
Mysqldump-u $ DBUser -- opt $ DBName> $ DumpFile