title: How do I download .csv files through a JavaScript program and then give them to a Python program in a shell script?
body: <p>I currently have a JavaScript file that creates 3 .csv files when I run it. Separately, I have a Python file that is supposed to take those 3 .csv files as input to generate a new .xlsx file, which I will then download. </p>
  
  <p>I want to automate this whole process with a shell script (likely using Node.js). I'm assuming it's a simple solution no more than 4-5 lines, but I've never written a shell script, so I'm not sure how to download files/use them for input if I'd be eventually doing this on a server. Any help would be much appreciated!</p>