// if you didnt create the target db, do it:
mysql -u your_user -p

> CREATE DATABASE the_db_cloned_name;
> SHOW DATABASES

// then check if it is created and so you're ready to proceed
mysqldump -u your_user -p the_db_name > /directory/file_name.sql
mysql -u your_user -p the_db_cloned_name < /directory/file_name.sql