bash - A better way to execute multiple MySQL commands using shell script

Question

I would like to write a *.sh script to execute multiple MySQL commands.

Currently, what I can do is something like the following

mysql -h$host -u$user -p$password -e "drop database $dbname;"
mysql -h$host -u$user -p$password -e "create database $dbname;"
mysql -h$host -u$user -p$password -e "another MySQL command"
...

Is there a way to avoid typing " mysql -h$host -u$user -p$password -e" every time I want to execute a MySQL command?

Answer 1

I think you can execute MySQL statements from a text file, for example

here is the cmds.txt file which contains MySQL commands:

select colA from TableA;
select colB from TableB;
select colC from TableC;

To execute them using shell script, type

mysql -h$host -u$user -p$password db_dbname < cmds.txt

This way, you separate your MySQL commands from your shell script.

You may want your script to display progress information to you. For this you can invoke mysql with "--verbose" option.

For more information, see https://dev.mysql.com/doc/refman/5.6/en/mysql-batch-commands.html