r.support Allows creation and/or modification of raster map layer support files (metadata). Raster (r.*) ParameterRaster|map|Name of raster map|False ParameterString|title|Title for resultant raster map|None|False|True ParameterString|timestamp|r.timestamp date: Datetime, datetime1/datetime2, or 'none' to remove'|None|False|True ParameterString|history|Text to append to the next line of the map's metadata file|None|True|True ParameterString|units|Text to use for map data units|None|False|True ParameterString|vdatum|Text to use for map vertical datum|None|False|True ParameterString|source1|Text to use for data source, line 1|None|False|True ParameterString|source2|Text to use for data source, line 2|None|False|True ParameterString|description|Text to use for data description or keyword(s)|None|False|True *ParameterFile|loadhistory|Text file from which to load history|False OutputRaster|output|Metadata