To download all files from a Google Cloud Storage bucket (if you are using Google Cloud services like App Engine etc) is actually quite easy but you’ll need to use gsutil to do it. See the docs at https://cloud.google.com/storage/docs/gsutil. You will need the Google Cloud SDK installed so you can run “gcloud”.
To compare two mysql databases in linux/osx you can use a very simple script that calls the “mysqldump” and “diff” commands to output the difference in structure of two databases to an output file. In this case I was comparing my local database with another at IP address 22.214.171.124. You will be prompted for passwords but to avoid this you can add “-pYOURPASSWORD” (less secure):