Command rake to tell you all tasks available

listing_rake_tasks.sh

# rake -T, --tasks [PATTERN]            Display the tasks (matching optional PATTERN) with descriptions, then exit.
rake -T

listing_rake_tasks_result.sh

# here is a sample result of the command rake tasks
# ---
rake about                                         # List versions of all Rai...
rake airbrake:deploy                               # Notify Airbrake of a new...
rake airbrake:heroku:add_deploy_notification       # Install Heroku deploy no...
rake airbrake:test                                 # Verify your gem installa...
rake assets:clean                                  # Remove compiled assets
rake assets:precompile                             # Compile all the assets n...
rake db:create                                     # Create the database from...
rake db:drop                                       # Drops the database using...
rake db:fixtures:load                              # Load fixtures into the c...
rake db:migrate                                    # Migrate the database (op...