Shell脚本运行HiveQL查询

Question

I am new to Unix Shell Scripting world. I wanted to run a simple sql query from the unix shell script and output the result in a .txt file and then send that .txt file as an attachment in an email.

SQL Query and piping the output to a txt file:

SELECT count(*) from pds_table > a.txt;

How can I do this from a shell script and send the output to a txt file and then send that txt file as an attachment in an email.

Answer 1

hive -e 'SELECT count(*) from pds_table' > a.txt

You can find more information here: https://cwiki.apache.org/confluence/display/Hive/LanguageManual+Cli

After that you should be able to send an email with your attachment wherever you like using mutt. Note that you need to create some nice preformatted_mail.txt file which looks like the way you want it.

#!/bin/bash
hive -e 'SELECT count(*) from pds_table' > attachment.tmp
mutt -s "Daily logs" -a attachment.tmp some@email.you.like < preformatted_mail.txt