Drush is a command-line shell and scripting interface for Drupal, a veritable Swiss Army knife designed to make life easier for those who spend their working hours hacking away at the command prompt.
To test: ./drush pm-updatestatus -r ~/reps/tag1/d7 --debug --source=https://cnn.com. Then look in the logs for something like Executing: wget -q --timeout=30 -O /Users/weitzman/tmp/download_fileQoaHoo https://cnn.com/drupal/7.x
To test:
./drush pm-updatestatus -r ~/reps/tag1/d7 --debug --source=https://cnn.com
. Then look in the logs for something likeExecuting: wget -q --timeout=30 -O /Users/weitzman/tmp/download_fileQoaHoo https://cnn.com/drupal/7.x