title: How to Access files on Heroku?
body: <p>I have a project on Heroku. This project allows me to update a JSON file. If update something on Heroku via the project's web interface I see the update. I can close the browser, open it again and the update persists. </p>
  
  <p>Now, I want to push something to this project. If I do, the JSON file will be overwritten. So, I pulled first to get the current project state from heroku. Heroku's prompt says that everything is up to date, which is not true since I changed the JSON file. </p>
  
  <p>Using <code>heroku run ls static/json/</code> shows the changed file. I need to get this file before pushing to heroku to avoid destroying updates done via the web interface. </p>