gdal_contour(1) on Linux
The text 429cdb727de0, as Debian 8 (Jessie) shipped it.
gdal_contour builds vector contour lines from a raster elevation model
Flags it lists
-
-a -
-b -
-dsco -
-f -
-fl -
-i -
-lco -
-nln -
-off -
-snodata