Shell Script To Add MySQL Database, Username and Password Including Remote Host Access

#!/bin/bash
# A shell script to add mysql database, username and password. 
# It can also grant remote access on fly while creating the database.
# -------------------------------------------------------------------------
# Copyright (c) 2007 nixCraft project <http://cyberciti.biz/fb/>
# This script is licensed under GNU GPL version 2.0 or above
# -------------------------------------------------------------------------
# This script is part of nixCraft shell script collection (NSSC)
# Visit http://bash.cyberciti.biz/ for more information.
# -------------------------------------------------------------------------
# Last updated on Jan/09/2010
# -------------------------------------------------------------------------
_db="$1"
_user="$2"
_pass="$3"
_dbremotehost="$4"
_dbrights="$5"
 
## Path to mysql bins ##
mysql="/usr/bin/mysql"
## Mysql root settings ##
_madminuser='root'
_madminpwd='MySQL-PassWord'
_mhost='localhost'
 
# make sure we get at least 3 args, else die
[[ $# -le 2 ]] && { echo "Usage: $0 'DB_Name' 'DB_USER' 'DB_PASSORD' ['remote1|remote2|remoteN'] ['DB_RIGHTS']"; exit 1; }
 
# fallback to ALL rights 
[[ -z "${_dbrights}" ]] && _dbrights="ALL"
 
# build mysql queries 
_uamq="${mysql} -u "${_madminuser}" -h "${_mhost}" -p'${_madminpwd}' -e 'CREATE DATABASE ${_db};'"
_upermq1="${mysql} -u "${_madminuser}" -h "${_mhost}" -p'${_madminpwd}' -e \"GRANT ${_dbrights} ON ${_db}.* TO ${_user}@localhost IDENTIFIED BY '${_pass}';\""
 
 
# run mysql queries
$_uamq
$_upermq1
 
 
# read remote host ip in a bash loop
# build queires to grant permission to all remote webserver or hosts via ip using the same username
IFS='|'
for  i in ${_dbremotehost}
do
	_upermq2="${mysql} -u "${_madminuser}" -h "${_mhost}" -p'${_madminpwd}' -e \"GRANT ${_dbrights} ON ${_db}.* TO ${_user}@${i} IDENTIFIED BY '${_pass}';\""
	$_upermq2
done