centos man page for grub-reboot

GRUB-REBOOT(8)						  System Administration Utilities					    GRUB-REBOOT(8)

NAME
       grub-reboot - set the default boot entry for GRUB, for the next boot only

SYNOPSIS
       grub-reboot [OPTION] MENU_ENTRY

DESCRIPTION
       Set the default boot menu entry for GRUB, for the next boot only.

       -h, --help
	      print this message and exit

       -V, --version
	      print the version information and exit

       --boot-directory=DIR
	      expect GRUB images under the directory DIR/grub instead of the /boot/grub directory

       MENU_ENTRY is a number, a menu item title or a menu item identifier. Please note that menu items in submenus or sub-submenus require speci-
       fying the submenu components and then the menu item component. The titles should be separated using the greater-than character (>) with	no
       extra  spaces.  Depending on your shell some characters including > may need escaping. More information about this is available in the GRUB
       Manual in the section about the 'default' command.

REPORTING BUGS
       Report bugs to <bug-grub@gnu.org>.

SEE ALSO
       grub-set-default(8), grub-editenv(1)

       The full documentation for grub-reboot is maintained as a Texinfo manual.  If the info and grub-reboot programs are properly  installed	at
       your site, the command

	      info grub-reboot

       should give you access to the complete manual.

grub-reboot (GRUB) 2.02-2ubuntu8.3				     July 2018							    GRUB-REBOOT(8)