execute

# File lib/rubygems/commands/install_command.rb, line 156
  def execute
    if options.include? :gemdeps then
      install_from_gemdeps
      return # not reached
    end

    @installed_specs = []

    ENV.delete 'GEM_PATH' if options[:install_dir].nil? and RUBY_VERSION > '1.9'

    check_install_dir
    check_version

    load_hooks

    exit_code = install_gems

    show_installed

    terminate_interaction exit_code
  end