I want to save shapefile (polygon) with color in gmt format and in geoghrapic coordinate not utmUTM. myMmy shapefile is in utmUTM. I run below as an example how to show in lat lon and with color. ogr2ogr -f "GMT" Hudson_bounds.gmt Hudson_bounds.shp
ogr2ogr -f "GMT" Hudson_bounds.gmt Hudson_bounds.shp