get help on what commands are available (some output truncated). : RubyGems « Language Basics « Ruby






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get help on what commands are available (some output truncated).


$ gem help commands

GEM commands are:

 build         Build a gem from a gemspec
 ...
 specification Display gem specification (in yaml)
 uninstall     Uninstall a gem from the local repository
 unpack        Unpack an installed gem to the current directory
 update        Update the named gem (or all installed gems) in the local repository

For help on a particular command, use 'gem help COMMAND'.

Commands may be abbreviated, so long as they are unambiguous.
e.g. 'gem i rake' is short for 'gem install rake'.








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1.RubyGems is a package utility for Ruby
2.getting help on how to issue RubyGems commands:
3.help on examples (some output truncated).
4.gem help env
5.Show everything on the RubyGems environment with this command:
6.show the RubyGems installation directory:
7.Let's check to see if Ruby on Rails is present with the list command.
8.You can check what dependencies a gem has with the dependency 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: