code: private int showAvatar()
        throws IOException {
      int exitCode = 0;
      Avatar avatar = avatarnode.reportAvatar();
      System.out.println("The current avatar of " + AvatarNode.getAddress(conf)
          + " is " + avatar);
      return exitCode;
    }
docs: Apply operation specified by 'cmd' on all parameters starting from
  argv[startindex].