[GRASS5] Inconsistencies among modules

[Frank Warmerdam]

Rich Shepard wrote:

>  Two inconsistencies I've picked up:
>
>  1)  Some modules (e.g., r.in.gdal, r.patch) allow the use of an existing
>output file name with no warning that that file already exists, and asking
>the user if it's OK to overwrite it. Other modules (e.g., r.poly, v.digit)
>tell the user that the output file name exists, does not ask for directions,
>and refuses to let the user overwrite it. Recommendation: always check,
>always ask, follow the user's directions.
>

Folks,

What would the normal mechanism be to ask the user if they want to overwrite
an existing raster layer?

Best regards,

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