problem running mysql script file

Hello,
As a newbie I am trying to install a php based program.  The install instructions tell me to populate the database with the included script.  I have already created the database and the user with no password but when I run the script from the command line I get the mysql help output.
Here is the command I use:
mysql create_tables.sql timeclock -u timeclock

What is the format I should be using??