def alias_list
      lines = normalize_array(rvm(:alias, :list).stdout)
      lines.inject({}) do |acc, current|
        alias_name, ruby_string = current.to_s.split(" => ")
        unless alias_name.empty? || ruby_string.empty?
          acc[alias_name] = ruby_string
        end
        acc
      end
    end
def alias_list
      lines = normalize_array(rvm(:alias, :list).stdout)
      lines.inject({}) do |acc, current|
        alias_name, ruby_string = current.to_s.split(" => ")
        unless alias_name.empty? || ruby_string.empty?
          acc[alias_name] = ruby_string
        end
        acc
      end
    end
Returns a hash of aliases.