Converts data between formats.
Here are some flags and their meaning from PostGIS workshop:
-nln: new layer name, sets the table name that will be created in the target database- From ogr2ogr docs, it is an alternate name to the new layer
-nlt: new layer type, defines the geometry type for the created layer- Refer to ogr2ogr docs
-lco: layer create option- Also refer to the layer creation options for PostGIS