Reminder: rake is a command line utility that is used to automate a variety of small tasks that ruby and rails developers have to do all the time. (For your history buff, the name is derived from the old C utility called “make” – “ruby make” -> “rake”)
Reminder: As of Rails 5, you can use rails as the prefix instead of rake
Getting a list of Rake “tasks”
rake -T # to get a list of all the more typical rake tasks
rake -T -A # show every single task
Primary db related tasks
db:migrate runs migrations for the current env that have not run yet
db:create creates the database for the current env