Example Setup for stage_file_proxy

 1[me@common-dev default]$ drush pm-download stage_file_proxy
 2Project stage_file_proxy (7.x-1.8) downloaded to /var/www/sites/project.example.com/www/sites/all/modules/contrib/stage_file_proxy.                               [success]
 3[me@common-dev default]$ drush pm-enable --yes stage_file_proxy
 4The following module has moved within the file system: <em class="placeholder">stage_file_proxy</em>. In order to fix this, clear caches or put the module back in its [warning]
 5original location. For more information, see <a href="https://www.drupal.org/node/2487215">the documentation page</a>. bootstrap.inc:1143
 6The following extensions will be enabled: stage_file_proxy
 7Do you really want to continue? (y/n): y
 8stage_file_proxy was enabled successfully.                                                                                                                             [ok]
 9stage_file_proxy defines the following permissions: administer stage_file_proxy settings
10[me@common-dev default]$ drush variable-set stage_file_proxy_origin "https://www.example.com"
11stage_file_proxy_origin was set to "https://www.eample.com".                                                                                                [success]