Rails 3 Cheatsheet

# Create a new application
rails new ApplicationName

# Create a new model
rails generate/g model ModelName

# Create a new controller
rails generate/g controller ControllerName

# Create a new migration
rails generate/g migration MigrationName

# Create a scaffolded controller, model and view 
rails generate/g scaffold ModelName ControllerName

# Destroy a new model
rails destroy model ModelName

# Destroy a new controller
rails destroy controller ControllerName

# Destroy a new migration
rails destroy migration MigrationName

# Start the rails server
rails server/s

# Install a plugin
rails plugin install PluginName

# Start the rails console
rails console/c

# Start the database console
rails dbconsole/db

# Benchmark/Profile the application
rails performance

# Create the database
rake db:create

# Drop the database  
rake db:drop

# Migrate the database
rake db:migrate

# Drop and recreate database from schema
rake db:reset

# Rollback the latest migration
rake db:rollback

# Create the schema file
rake db:schema:dump

# Create a sessions migration
rake db:sessions:create

# Build the RDOC html files
rake doc:app

# List all available tasks
rake –tasks

# Truncate log files
rake log:clear

# Clear session, cache and socket files
rake tmp:clear

# Print out all defined application routes
rake routes

# Run all tests
rake test

# Run functional tests
rake test:functionals

# Run integration tests
rake test:integration

# Run unit tests
rake test:units

# Lock this application's gem set
rake rails:freeze:gems

# List dependent gems
rake gems

# Install all required gems
rake gems:install

# List all installed gems 
gem list

# Install a gem
gem install GemName

# Uninstall a gem
gem uninstall GemName

# Start the gem server
gem server