* rake cache:clear # Clears all cached pages
    * rake db:bootstrap # Loads a schema.rb file into the database and then loads the initial database fixtures.
    * rake db:bootstrap:copy_default_theme # Copy default theme to site theme
    * rake db:migrate # Migrate the database through scripts in db/migrate. Target specific version with VERSION=x
    * rake db:schema:dump # Create a db/schema.rb file that can be portably used against any DB supported by AR
    * rake db:schema:load # Load a schema.rb file into the database
    * rake db:bootstrap:load # Load initial database fixtures (in db/bootstrap/*.yml) into the current environment’s database. Load specific fixtures using FIXTURES=x,y
    * rake db:fixtures:load # Load fixtures into the current environment’s database. Load specific fixtures using FIXTURES=x,y
    * rake db:sessions:clear # Clear the sessions table
    * rake db:sessions:create # Creates a sessions table for use with CGI::Session::ActiveRecordStore
    * rake db:structure:dump # Dump the database structure to a SQL file
    * rake db:test:clone # Recreate the test database from the current environment’s database schema
    * rake db:test:clone_structure # Recreate the test databases from the development structure
    * rake db:test:prepare # Prepare the test database and load the schema
    * rake db:test:purge # Empty the test database
    * rake deploy # Push the latest revision into production using the release manager
    * rake diff_from_last_deploy # Describe the differences between HEAD and the last production release
    * rake doc:app # Build the app HTML Files
    * rake doc:clobber_app # Remove rdoc products
    * rake doc:clobber_plugins # Remove plugin documentation
    * rake doc:clobber_rails # Remove rdoc products
    * rake doc:plugins # Generate documation for all installed plugins
    * rake doc:rails # Build the rails HTML Files
    * rake doc:reapp # Force a rebuild of the RDOC files
    * rake doc:rerails # Force a rebuild of the RDOC files
    * rake edge # freeze rails edge
    * rake log:clear # Truncates all *.log files in log/ to zero bytes
    * rake rails:freeze:edge # Lock to latest Edge Rails or a specific revision with REVISION=X (ex: REVISION=4021) or a tag with TAG=Y (ex: TAG=rel_1-1-0)
    * rake rails:freeze:gems # Lock this application to the current gems (by unpacking them into vendor/rails)
    * rake rails:unfreeze # Unlock this application from freeze of gems or edge and return to a fluid use of system gems
    * rake rails:update # Update both configs, scripts and public/javascripts from Rails
    * rake rails:update:configs # Update config/boot.rb from your current rails install
    * rake rails:update:javascripts # Update your javascripts from your current rails install
    * rake rails:update:scripts # Add new scripts to the application script/ directory
    * rake remote_exec # Execute a specific action using the release manager
    * rake rollback # Rollback to the release before the current release in production
    * rake show_deploy_tasks # Enumerate all available deployment tasks
    * rake stats # Report code statistics (KLOCs, etc) from the application
    * rake test # Test all units and functionals
    * rake test:functionals # Run tests for functionalsdb:test:prepare
    * rake test:integration # Run tests for integrationdb:test:prepare
    * rake test:plugins # Run tests for pluginsenvironment
    * rake test:recent # Run tests for recentdb:test:prepare
    * rake test:uncommitted # Run tests for uncommitteddb:test:prepare
    * rake test:units # Run tests for unitsdb:test:prepare
    * rake tmp:cache:clear # Clears all files and directories in tmp/cache
    * rake tmp:clear # Clear session, cache, and socket files from tmp/
    * rake tmp:create # Creates tmp directories for sessions, cache, and sockets
    * rake tmp:pids:clear # Clears all files in tmp/pids
    * rake tmp:sessions:clear # Clears all files in tmp/sessions
    * rake tmp:sockets:clear # Clears all files in tmp/sockets
    * rake update_dialog_helper # Copies the latest dialog.js to the application’s public directory

-- HecPeAre - 22 Aug 2007

http://railscasts.com/episodes/66