I'm following the steps to migrate everything to the new AWS ide. Whenever I run the script in the new ide, it says rsync needs to be installed. I didn't think I would have to install anything new and can't figure out why it won't work. Any ideas?
For the purposes of CS50, there's no need to migrate to an AWS site. Cloud9 is offering that to you since you have a c9.io site already (most students were using CS50's cloud9 (cs50.io) and not c9.io directly.)
Instead, you can simply download your workspace and upload it to the new CS50 IDE (http://ide.cs50.io)
Here answered D.Malan: "...cs50.io won't be shutting down" https://www.facebook.com/groups/cs50/permalink/1342887019191673/