Running the script it has issues using mysqldump on my MacOs Sierra though running it from the terminal using mysqldump works just fine. Here is what I get
./sync-db-from-prod.sh
Do you solemnly swear that you have had fewer than 2 alcoholic beverages in the last hour and that you would really like to reset your development database and pull the latest from production? [y/N] y
Success: Database reset.
/usr/bin/env: ‘mysqldump’: No such file or directory
Success: Imported from 'sql-dump-production.sql'.
Error: The site you have requested is not installed.
Run `wp core install`.