hive 一次性命令

1、用hive查询，而不进入hive cli，查询后的值可以保存到文件中

#使用参数-e
[hadoop@bigdata-senior01 ~]$ hive -e "select * from busdata.weather_count"

OK
1990    900
1991    887
1992    909
1993    923
1994    873
1995    866
1996    987
1997    961
1998    853
1999    914
2000    927
Time taken: 3.221 seconds, Fetched: 11 row(s)

#加上静默开关-S，过滤ok和tim taken
[hadoop@bigdata-senior01 ~]$ hive -S -e "select * from busdata.weather_count"
1990    900
1991    887
1992    909
1993    923
1994    873
1995    866
1996    987
1997    961
1998    853
1999    914
2000    927

#结果导入到本地文件中
[hadoop@bigdata-senior01 ~]$ hive -S -e "select * from busdata.weather_count" > weather_max.txt

2、查找某个配置属性

[hadoop@bigdata-senior01 ~]$ hive -S -e "set" | grep warehouse
hive.metastore.warehouse.dir=/hive/warehouse

3、执行外部脚本

[hadoop@bigdata-senior01 ~]$ cat weather_query.hql
select * from busdata.weather_count;
select * from busdata.weather_max;

[hadoop@bigdata-senior01 ~]$ hive -f /home/hadoop/weather_query.hql
#静默执行，然后结果导入文件
[hadoop@bigdata-senior01 ~]$ hive -S -f /home/hadoop/weather_query.hql >weather_mix.txt