[GRASSLIST:6416] make intermediate contours or any contours at all

[Dan Jacobson]

I want to enter by hand contour lines of 100, 200, 300 meters,
and make a map with contours every 50 meters.

r.surf.contour says use v.digit. OK but then how does one put the
elevation in each label?

Do I run r.label three times or something?

And then I use v.to.rast, is that right?

And then r.surf.contour I suppose.

And then r.contour, and finally d.vect, no?

Let's say I fail because I can't understand instructions, and must
just draw everything by hand. I suppose I would still need to use
v.digit and somehow get the labels on the lines?