How to feed mysql queries from bash
The reason your attempt did not work was because the <
expects a file name and you fed it a string. You would have to do something like
echo "YOURQUERYSTRINGHERE">tmpfile
mysql --host=localhost --user=user --password=password dbname <tmpfile
ken's suggestion of
mysql --host=localhost --user=user --password=password -e "QUERY" dbname
can work, but if you try to use bash variables in your query you can fall foul of parameter expansion. eg
QUERY="select * from $MYTABLE WHERE name=\"silly@place.com\";"
mysql --host=localhost --user=user --password=password -e "$QUERY" mydbname
may not do what you expect. One option is use
echo "$QUERY"|mysql --host=localhost --user=user --password=password mydbname
which works if the query string contains appropriate quoting. Another option is the "here" document as suggested by dogbane.
Try using a here document like this:
mysql --host=localhost --user=user --password=password << END
CREATE USER 'testuser'@'localhost' IDENTIFIED BY 'jakdJxct8W';
CREATE DATABASE IF NOT EXISTS 'testuser_dev' DEFAULT CHARACTER SET utf8 COLLATE utf8_bin;
GRANT ALL PRIVILEGES ON 'testuser_dev' . * TO 'testuser'@'localhost';
CREATE DATABASE IF NOT EXISTS 'testuser_qa' DEFAULT CHARACTER SET utf8 COLLATE utf8_bin;
GRANT ALL PRIVILEGES ON 'testuser_qa' . * TO 'testuser'@'localhost';
END
Alternatively place all you commands in text file and run it:
mysql --host=localhost --user=user --password=password < commands.sql
Try like this:
echo "select 1" | mysql
mysql --batch --silent -e 'SHOW TABLES';
Batch and silent are handy if you are planning to pipe the output