Help convert vector contour line to surface elevation

[mohdnaka]

Dear Grassusers

I have a set of vector contour lines that I would like to convert to raster
 surface elevation. If r.contour can create a vector contour file from 
raster elevation data, is there any command that I can use that will create
raster elevation data from vector contour lines.

Any suggestions or help are welcome.

Cheers,

Kamarul