Rails and Rake

Here's a list of helpful rake commands for rails:

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rake db:fixtures:load - Load fixtures into the current environment's database. Load specific fixtures using FIXTURES=x,y
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rake db:migrate - Migrate the database through scripts in db/migrate. Target specific version with VERSION=x
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rake db:schema:dump - Create a db/schema.rb file that can be portably used against any DB supported by AR.
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rake db:schema:load - Load a schema.rb file into the database.
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rake db:sessions:clear - Clear the sessions table.
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rake db:sessions:create - Creates a sessions table for use with CGI::Session::ActiveRecordStore.
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rake db:structure:dump - Dump the database structure to a SQL file.
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rake db:test:clone - Recreate the test database from the current environment's database schema.
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rake db:test:clone_structure - Recreate the test databases from the development structure.
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rake db:test:prepare - Prepare the test database and load the schema.
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rake db:test:purge - Empty the test database.
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rake doc:appBuild the app HTML Files.
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rake doc:clobber_app - Remove rdoc products.
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rake doc:clobber_plugins - Remove plugin documentation.
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rake doc:clobber_rails Remove rdoc products.
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rake doc:plugins - Generate documation for all installed plugins.
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rake doc:rails - Build the rails HTML Files.
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rake doc:reapp - Force a rebuild of the RDOC files
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rake doc:rerails - Force a rebuild of the RDOC files
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rake log:clear - Truncates all *.log files in log/ to zero bytes
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rake rails:freeze:edge - Lock this application to latest Edge Rails. Lock a specific revision with REVISION=X.
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rake rails:freeze:gems - Lock this application to the current gems (by unpacking them into vendor/rails)
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rake rails:unfreeze - Unlock this application from freeze of gems or edge and return to a fluid use of system gems
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rake rails:update - Update both scripts and public/javascripts from Rails.
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rake rails:update:javascripts - Update your javascripts from your current rails install.
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rake rails:update:scripts - Add new scripts to the application script/ directory.
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rake stats - Report code statistics (KLOCs, etc) from the application.
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rake test - Test all units and functionals
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rake test:functionals - Run tests for functionalsdb:test:prepare
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rake test:integration - Run tests for integrationdb:test:prepare
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rake test:plugins - Run tests for pluginsenvironment
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rake test:recent - Run tests for recentdb:test:prepare
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rake test:uncommitted - Run tests for uncommitteddb:test:prepare
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rake test:units - Run tests for unitsdb:test:prepare
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rake tmp:cache:clear - Clears all files and directories in tmp/cache
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rake tmp:clear - Clear session, cache, and socket files from tmp/
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rake tmp:create - Creates tmp directories for sessions, cache, and sockets
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rake tmp:sessions:clear - Clears all files in tmp/sessions
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rake tmp:sockets:clear - Clears all ruby_sess.* files in tmp/sessions




Original Source:

http://www.tutorialspoint.com/ruby-on-rails/rails-and-rake.htm