如何使用用户输入的名称创建MYSQL数据库

Question

I'm trying to automate the setup of new wordpress hosting clients on my webserver and each client needs it's on MYSQL DB however I cannot figure out a way to give each one a unique name by excepting input from a user

I've tried entering a default value, ie wordpressJohn and it worked perfect however it cannot pull in the variable from above and I'm unsure if I am doing it right or not.

read -p "Enter The Customer's Domain Name: " domainName   
shortenedDomainName=$domainName | cut -f1 -d"."   
sudo mysql -uroot -e "CREATE DATABASE wordpress$shortenedDomainName" 
sudo mysql -uroot -e "GRANT ALL PRIVILEGES on wordpress$shortenedDomainName.* to 'admin_$shortenedDomainName'@'localhost' identified by 'arandompasswordhere';"
sudo mysql -uroot -e "FLUSH PRIVILEGES"

I would expect the script to run and create a database based off of the domain name entered ie:

Domain entered = howtofish.com

I would expect the database wordpresshowtofish to be made, the user admin_howtofish to be given full privileges to the database using a random password

However, what I get is:

Domain entered = howtofish.com

I get the database wordpress made, the user admin is given full privileges to the database using a random password

Answer 1

The code below solved it.

read -p "Enter The Customer's Domain Name: " domainName                                                                                                           
shortdomname=${domainName//.}                                                                                                                                     
dbname=${shortdomname}_db                                                                                                                                         
mysql -e "CREATE DATABASE ${dbname};"
mysql -e "GRANT ALL PRIVILEGES ON ${dbname}.* TO 'dbadmin'@'localhost' IDENTIFIED BY 'random';"
mysql -e "FLUSH PRIVILEGES;"