ruby script/generate Model <類名> <字段1>:<類型>...
ruby script/generate Model Item name:string age:integer

ruby script/destroy Model

ruby script/generate Controller <控制器名> <動作1> <動作2>...
ruby script/generate Controller Web index remove news....

ruby script/generate Migration Add<遷移文件標識>To<類名> <字段1>:<類型>...
ruby script/generate Migration AddLanguagesToLive english_name:string japanese_name:string

ruby script/generate Migration Remove<遷移文件標識>From<類名> <字段1>:<類型>...
ruby script/generate Migration RemoveLanguagesFromLive english_name:string japanese_name:string

rake db:migrate
rake db:migrate RAILS_ENV=production

rake db:rollback

rake log:clear

type log/production.log

Rails 工程名
Rails demo

ruby script/server

ruby script/console