program error reporting

[mihaldisike]

you might consider to adding the following here https://github.com/codigofuerte/GeoNames-MySQL-DataImport/blob/master/geonames_importer.sh#L189

*)
    RED='\033[0;31m'
    NC='\033[0m' # No Color
    printf "${RED}Invalid ACTION! \n Please choose one of \n${NC}"
    usage
    exit 127

this will help n00b users like me understand why the program says everything okay but not having end results