>>>>> Jamie Adams <[EMAIL PROTECTED]> writes:

 > Hello all, I'd like to generate a raster index polygon file, just
 > like gdaltindex does, but using GRASS rasters as input.  Is there a
 > command I'm overlooking?

        It may depend on the goal, but v.in.region(1) may be of some
        use.

 > If not, any ideas on how to do this?

        Iterating over the set of rasters can be implemented using
        g.mlist(1) and the standard Shell `while' and `read' commands,
        like:

$ g.mlist type=rast pattern=2008-\*-foo \
      | while read r ; do \
            : ... do something... ; \
        done

        And the vectors can be concatenated using v.patch(1), like:

   v.in.region output=tmp_vector
   v.patch  -a output=resulting_vector input=tmp_vector

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