You can check what dependencies a gem has with the dependency command: : RubyGems « Language Basics « Ruby

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Ruby » Language Basics » RubyGems   You can check what dependencies a gem has with the dependency command: $ gem dep rails Gem rails-1.2.3   rake (>= 0.7.2)   activesupport (= 1.4.2)   activerecord (= 1.15.3)   actionpack (= 1.13.3)   actionmailer (= 1.3.3)   actionwebservice (= 1.2.3)   Related examples in the same category 1.  RubyGems is a package utility for Ruby 2.  getting help on how to issue RubyGems commands: 3.  get help on what commands are available (some output truncated). 4.  help on examples (some output truncated). 5.  gem help env 6.  Show everything on the RubyGems environment with this command: 7.  show the RubyGems installation directory: 8.  Let's check to see if Ruby on Rails is present with the list command. 9.  To select dependencies as you install a package, skip the --include-dependencies option 10.  To update all the gems on your system with all the current versions, use the update command. 11.  To uninstall a package with the uninstall command:

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