GRUB2 extra: eval
Type: command
Description:
  Add an 'eval' command that will evaluate its argument as if you typed it.
  Could be used to postponed some execution or to construct dynamic code.

Build instructions:
  This should be used in a grub-extras context.
  grub-extras is meant to be used as an overlay on grub2 source tree.
  - Copy these sources to a subdirectory of grub contrib
    [grub2-2.00]$ mkdir grub-extras
    [grub2-2.00]$ export GRUB_CONTRIB="$PWD/grub-extras/"
    [grub2-2.00]$ cp -e ../eval "$GRUB_CONTRIB"/
  - Build grub as usual.
