Shell Script : Interactive Way To Create Mysql User And Grant Access

Shell script help user to create user in mysql database, when user don't know about mysql, but need quickly add new user. Script should run only from user that have passwordless access to mysql.

Shell Script


#Ask user to enter database name and save input to dbname variable
read -p "Please Enter Database Name:" dbname

#checking if database exist
mysql -Bse "USE $dbname" 2> /dev/null

#if database exist:
if [ $? -eq 0 ]; then

#ask user about username
read -p "Please enter the username you wish to create : " username

#ask user about allowed hostname
read -p "Please Enter Host To Allow Access Eg: %,ip or hostname : " host

#ask user about password
read -p "Please Enter the Password for New User ($username) : " password

#mysql query that will create new user, grant privileges on database with entered password
query="GRANT ALL PRIVILEGES ON $dbname.* TO [email protected]'$host' IDENTIFIED BY '$password'";

#ask user to confirm all entered data
read -p "Executing Query : $query , Please Confirm (y/n) : " confirm

#if user confims then
if [ "$confirm" == 'y' ]; then

#run query
mysql -e "$query"

#update privileges, without this new user will be created but not active
mysql -e "flush privileges"


#if user didn't confirm entered data
read -p "Aborted, Press any key to continue.."

#just exit


#If database not exit – warn user and exit
echo "The Database: $dbname does not exist, please specify a database that exists";



Server1:/# ./

Please Enter Database Name:test

Please enter the username you wish to create : test

Please Enter Host To Allow Access Eg: %,ip or hostname : localhost

Please Enter the Password for New User (test) : 12321q

Executing Query : GRANT ALL PRIVILEGES ON test.* TO [email protected]'localhost' IDENTIFIED BY '12321q' , Please Confirm (y/n) : y


Server1:/# mysql -u test -p12321q

Welcome to the MySQL monitor. Commands end with ; or \g.

Your MySQL connection id is 54

Server version: 5.1.66-0+squeeze1 (Debian)

Copyright (c) 2000, 2012, Oracle and/or its affiliates. All rights reserved.

Oracle is a registered trademark of Oracle Corporation and/or its

affiliates. Other names may be trademarks of their respective


Type 'help;' or '\h' for help. Type '\c' to clear the current input statement.

mysql> Bye

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Bobbin Zachariah 9:49 am

About Bobbin Zachariah

Founder of LinOxide, passionate lover of Linux and technology writer. Started his career in Linux / Opensource from 2000. Love traveling, blogging and listening music. Reach Bobbin Zachariah about me page and google plus page.

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  1. Hey, this is a handy start point for a script I am writing, so thanks.

    One thing though, would it be better to use read -s (instead of -p) for the password prompt, so the entered password isn't shown on screen?