How do you find where a module's directory is located? I have the following: 

I want to find where the module "commerce_physical" is located in the modules folder, but I can't seem to locate this module. I did a find and a grep to locate where its files might be, but that doesnt seem to work. What are some other ways to find the location of a drupal 7 module?
Look at the {system} table.  In particular, the name column will be the module name (ie, the basename of the .info and .module files).  The filename column will be the full filename, with path, to the .info file for the module, relative to the DOCROOT of the installation.  See system_schema() for more information.