On 2019-10-01 at 18:55 -04, Rich Shepard <rshepard at appl-ecosys.com> wrote... > # get the list of DEM raster files > MAPS = `g.list type=raster sep=newline pat="45123*"` MAPS=$(g.list type=raster sep=comma pat="45123*") I think $() is preferred over `` and you need a comma separated list for r.patch. -k.