Question

I have a MySQL server with an user with a password. I want to execute some SQL queries in shell scripts without specifying the password like this:

config.sh:

MYSQL_ROOT="root"
MYSQL_PASS="password"

mysql.sh:

source config.sh
mysql -u$MYSQL_ROOT -p$MYSQL_PASS -e "SHOW DATABASES"

How can I simplify the whole process in order to execute SQL queries without specifying the -p and -u argument etc.?

Answer 1

Try this:

if [ $MYSQL_PASS ]
then
  mysql -u "$MYSQL_ROOT" -p"$MYSQL_PASS" -e "SHOW DATABASES"
else
  mysql -u "$MYSQL_ROOT" -e "SHOW DATABASES"
fi