def alias_command(alias_name, name, *args)
      @commands[alias_name.to_s] = command name
      @aliases[alias_name.to_s] = args
    end
def alias_command(alias_name, name, *args)
      @commands[alias_name.to_s] = command name
      @aliases[alias_name.to_s] = args
    end
Alias command _name_ with _alias_name_. Optionally _args_ may be passed
 as if they were being passed straight to the original command via the command-line.