Cronjob - runs when called in browser, does not run from cmd line cronjob

I am having problems with cronjob setup.

Calling your components cronjob directly with http://pediatricanesthesia.ca/index.php?option=com_easydiscuss&;task=cron works with no problem whatsoever. I have changed the $site in the cron.php file.

We are hosted with GoDaddy and I have just spoken to them and they can see nothing wrong with the command.

I set up cronjob for the following command to run every 5 mins:
/usr/local/bin/php -q "/home/clydematava/public_html/index.php?option=com_easydiscuss&task=cron"

Each time it tries to run, I get the following email:
Could not open input file: /home/clydematava/public_html/index.php?option=com_easydiscuss&task=cron