Need for command line version of r.mask in GRASS4.0

Greg Koerper greg at
Mon Nov 1 17:37:39 EST 1993

> I am needing a command line version of r.mask.
> Does such a beast exist.  Any help would be appreciated.
> Thanks
> Steffen Meyer
> Steffen Meyer, PE    Water Resource Engineer, Civil Engineering
> Graduate Student in Water Resources,  Colorado State University
> EMail: sm646601 at
Yes, it does:

g.copy ras=<raster name>,MASK


g.remove ras=MASK 

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