Permission denied - MySql database

Hello all, So I followed the link to setup the MySQL database to use with Freeradius https://wiki.freeradius.org/guide/SQL-HOWTO But whenever I do this mysql -u root -p radius < /etc/freeradius/sql/mysql/schema.sql The error was Bash - mysql -u root -p radius < /etc/freeradius/sql/mysql/schema.sql : Permission denied Any idea what the problem is? I have root password of the machine, of course