Whitespace in strings

[NiKiZe]

you can use ${} ${} to get a space.
the feature here is that double spaces is automatically trimmed, sometimes that might not be what you want and in those cases you can use the empty settings trick above.

other then that based on the clear screen example in http://ipxe.org/cmd/set#examples

Code:

set sp:hex 20:20:20:20:20
set sp ${sp:string}
# show 1 followed by 5 spaces and then 5
echo 1${sp}5