Write metada of raster files

[lrntct]

Original report by Laurent Courty (Bitbucket: lrntct, GitHub: lrntct).

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r.support[1] might be used to write the following informations:

• title: the map name (changing for every map)
• description: description of the data being written (Ex: water depth, flow velocity etc.)
• units: m/s, m etc.
• history: the simulation parameters

[1]https://grass.osgeo.org/grass71/manuals/r.support.html