Syntax:
set terminal dumb {[no]feed} {<xsize> <ysize>} {[no]enhanced}
where 5#5xsize6#6 and 5#5ysize6#6 set the size of the dumb terminals. Default is 79 by 24. The last newline is printed only if feed is enabled.
Examples:
set term dumb nofeed set term dumb 79 49 # VGA screen---why would anyone do that?