如何备份应用程序的数据库

Question

我正在尝试编写一个脚本来备份由应用程序管理的数据库，想知道是否有更简单的方法来执行此操作。我想我把它弄复杂了。

基本上我会停止应用程序服务（除了数据库）并将其保存到一个文本文件中，读取该文件直到它提供适当的输出。然后，我运行一个将数据库导出到两个文件的脚本，并将输出写入另一个文本文件，读取直到成功。然后，我再次启动服务。

代码如下：

#!/bin/bash

#Make sure to run in the right folder!

echo "Here it will stop the manager services"

/etc/init.d/arcsight_services stop manager > /tmp/tmp/mangerstatusdown.txt

while [["./rr.sh /tmp/tmp/managerstatusdown.txt" != "[manager status down]"]]

do 

    echo "Not Ready Yet"
    read -p "Do you think it's ready to move on?"

done 

echo "Now it will export the database"

/opt/arcsight/manager/bin/arcsight export_system_tables > /tmp/tmp/systemtables.txt

while [["./rr.sh /tmp/tmp/systemtables.txt" != "[system tables export successful]" ]]
do 

    echo "Not Ready Yet"
    read -p "Do you think it's ready to move on?"

done

echo "Here it will start the manager again"

/etc/init.d/arcsight_services start manager

这是引用的 rr.sh 脚本：

while IFS=' ' read -r line || [[ -n "$line"]]; do
    echo "Text read from file:  $line"
done < ""


#run as follows:
#chmod +x rr.sh
#./rr.sh filename.txt

这实际上是我的第一个脚本，所以请在解释时记住这一点！

Answer 1

bash 不直接进行字符串比较；您需要使用特定的命令。

while [[ "$(./rr.sh /tmp/tmp/systemtables.txt)" != "[system tables export successful]" ]]
do

如何备份应用程序的数据库

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