[bug #53065] Have a way to create help screen

[Gregory Herendi]

Follow-up Comment #1, bug #53065 (project grub):

Hello,
the solution which is available atm is:


set pager=1
cat ($root)/boot/grub/MESSAGE.txt
unset pager
echo -n "-- Press ESC or wait 60 sec to continue: "
sleep --verbose --interruptible  60


There is no pause command. To stop for a minute before showing the menu: sleep
continues on Escape key only.

_Grub manual:_
https://www.gnu.org/software/grub/manual/grub/grub.html#pager
https://www.gnu.org/software/grub/manual/grub/grub.html#cat
https://www.gnu.org/software/grub/manual/grub/grub.html#sleep
https://gitlab.com/GNU/GRUB/tree/master/grub-core/commands


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