I have a shapefile with several attributes, for example "YEAR", "COUNTY", and "AREA". I also have a CSV file with more fields that I want in the shapefile, such as "POPULATION". Both the shapefile and the CSV file have a field "GISJOIN".
I know how to do a join in QGIS. But how can I make a permanent join and write to a shapefile using ogr2ogr or one of the other tools in GDAL/OGR?