r.profile
r.profile - Outputs the raster map layer values lying on user-defined line(s).
Raster (r.*)
ParameterRaster|input|Name of input raster map|False
ParameterString|profile|Profile coordinate pairs|
ParameterString|res|Resolution along profile (default = current region resolution)|
ParameterString|null|Character to represent no data cell|*
ParameterBoolean|-i|Interactively select End-Points|False
ParameterBoolean|-g|Output easting and northing in first two columns of four column output|False
ParameterBoolean|-c|Output RRR:GGG:BBB color values for each profile point|False
OutputFile|output|Name of file for output (use output=- for stdout)