如何使用脚本shell执行mysql命令答案

【问题标题】：how to execute mysql command using script shell如何使用脚本shell执行mysql命令
【发布时间】：2015-02-15 17:40:53
【问题描述】：

我想在 centos 中使用 shell 脚本执行 mysql 命令，我正在编写命令，任何人都可以告诉我如何编写此脚本，并且我在文件中获取输出，所以每次执行脚本时它都会创建新文件。

SELECT TABLENAME, tablerow, round(data_length/1024/1024 ,2 ) as dl , round(index_length/1024/1024 ,2 ) as il , round(data_length/1024/1024 ,2 ) as dl , round((data_length + index_length)/1024/1024 ,2)  "size in mb" from Information schema , TABLES WHERE TABLE_SCHEMA=" Db_name" order by data_length desc limit 10 in to out file ' ' FIELDS TERMINATED BY ' | ' ENCLOSED BY "  " TERMINATED BY '\R\N '

【问题讨论】：

How to execute a MySQL command from a shell script? 的可能重复项
不，它不重复，我也想运行命令以在每次执行时更改输出文件
那里的答案之一告诉您如何将输出写入文件。
如果你想要一个不同的文件名，你需要某种计数器或时间戳。

标签： mysql linux shell

【解决方案1】：

试试这个方法：

mysql -u username -pPassword <database> -e "SELECT TABLENAME, tablerow, round(data_length/1024/1024 ,2 ) as dl , round(index_length/1024/1024 ,2 ) as il , round(data_length/1024/1024 ,2 ) as dl , round((data_length + index_length)/1024/1024 ,2)  "size in mb" from Information schema , TABLES WHERE TABLE_SCHEMA=" Db_name" order by data_length desc limit 10 in to out file ' ' FIELDS TERMINATED BY ' | ' ENCLOSED BY "  " TERMINATED BY '\R\N ';"

【讨论】：

【解决方案2】：

mysql -u root -p <Hit enter>
root             <Here root is password>

show databases;

先查看数据库，然后选择。

use database YourDatabase

然后输入您的命令，例如：

>SELECT TABLENAME, tablerow, round(data_length/1024/1024 ,2 ) as dl , round(index_length/1024/1024 ,2 ) as il , round(data_length/1024/1024 ,2 ) as dl , round((data_length + index_length)/1024/1024 ,2)  "size in mb" from Information schema , TABLES WHERE TABLE_SCHEMA=" Db_name" order by data_length desc limit 10 in to out file ' ' FIELDS TERMINATED BY ' | ' ENCLOSED BY "  " TERMINATED BY '\R\N '

【讨论】：