For the latest information about Hadoop, please visit our website at: http://hadoop.apache.org/ and our wiki, at: http://wiki.apache.org/hadoop/ This distribution includes cryptographic software. The country in which you currently reside may have re
xsv 是用 Rust 语言编写的命令行工具，用于索引、切分、分析和合并 CSV 文件，命令行使用简单快速以及可组合。示例用法：$ curl -LO http://burntsushi.net/stuff/worldcitiespop.csv
$ xsv headers worldcitiespop.csv
1 Country
2 City
3 AccentCity
4 Region
5 Population
6 Latitude
7 Longitud
包含全球城市的坐标和名称信息。包含city city_ascii lat lng country iso2 iso3 admin_name capital population id，可以从https://simplemaps.com/data/world-cities上下载，如果打不开网页吗，可以从这里下载
