/* example */
static int
example_func (char *arg, int flags)
{
  char *example_info_1 = ""
"Boot Linux\n"
"--------------------------------------------------------------\n"
"  1. Set GRUB's root device to the same drive as GNU/Linux's. Probably\n"
"     the command `find /boot/vmlinuz' , 'root (hd0,5) or similar can \n"
"     help you.\n"
"  2. Load the kernel:\n"
"          grub> kernel /vmlinuz root=/dev/hda1\n"
"     If you need to specify some kernel parameters, just append them to\n"
"     the command. For example, to set `vga' to `ext', do this:\n"
"          grub> kernel /vmlinuz root=/dev/hda1 vga=ext\n"
"     See the documentation in the Linux source tree for complete\n"
"     information on the available options.\n"
"  3. If you use an initrd, execute the command `initrd' after `kernel':\n"
"          grub> initrd /initrd\n"
"  4. Finally, run the command `boot'.\n"
"----------------------------------------------\n"
"  Boot my Linux 2.4.18-14\n"
"     root (hd0,10)\n"
"     kernel /boot/vmlinuz-2.4.18-14 ro root=LABEL=/ hdd=ide-scsi\n"
"     initrd /boot/initrd-2.4.18-14.img\n"
"     boot";

  char *example_info_2 = ""
"Boot FreeBSD\n"
"--------------------------------------------------------------\n"
"GRUB can load the kernel directly, either in ELF or a.out format. But\n"
"this is not recommended, since FreeBSD's bootstrap interface sometimes\n"
"changes heavily, so GRUB can't guarantee to pass kernel parameters\n"
"correctly.\n"
"   Thus, we'd recommend loading the very flexible loader `/boot/loader'\n"
"instead. See this example:\n"
"     grub> root (hd0,a)\n"
"     grub> kernel /boot/loader\n"
"     grub> boot";

  char *example_info_3 = ""
"Load another boot loader to boot unsupported operating systems\n"
"--------------------------------------------------------------\n"
"If you want to boot an unsupported operating system (e.g. Windows 95),\n"
"hain-load a boot loader for the operating system. Normally, the boot\n"
"loader is embedded in the \"boot sector\" of the partition on which the\n"
"operating system is installed.\n"
"  1. Set GRUB's root device to the partition by the command\n"
"     `rootnoverify'\n"
"          grub> rootnoverify (hd0,0)\n"
"  2. Set the \"active\" flag in the partition using the command\n"
"     `makeactive'(1)\n"
"          grub> makeactive\n"
"  3. Load the boot loader with the command `chainloader' \n"
"          grub> chainloader +1\n"
"     `+1' indicates that GRUB should read one sector from the start of\n"
"     the partition. \n"
"  4. Run the command `boot'.";

  switch (arg[0])
    {
    case '1':
      grub_printf (example_info_1);
      break;
    case '2':
      grub_printf (example_info_2);
      break;
    case '3':
      grub_printf (example_info_3);
      break;
    default:
      grub_printf ("example [1|2|3] \n\n"
                   "  exmple 1 : boot Linux\n"
                   "  exmple 2 : boot FreeBSD\n"
                   "  exmple 3 : boot Windows");
    }

  return 0;
}

static struct builtin builtin_example =
{
  "example",
  example_func,
  BUILTIN_CMDLINE | BUILTIN_HELP_LIST,
  "example [1|2|3]",
  "Show examles , page 1|2|3"
};

struct builtin *builtin_table[] =
{
  &builtin_blocklist,

  ...

  &builtin_embed,

  &builtin_example,

  &builtin_fallback,

  ...

  &builtin_vbeprobe,
  0
};