mysql数据库自动备份脚本分享

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这篇博客我将继续公开数据库自动备份的代码。可以这么说，没有数据库，一切就是个蛋，没有数据库备份，一切还是个蛋，你可以想象数据库备份多么重要。不会linux，不会写shell的朋友麻烦先去补补。不过你说我牛逼，不补也能看懂，那没问题，哈哈，废话不说了。老规矩，上代码：

#!/bin/bashtime=$(date +"%d-%m-%Y")pre=/home/ubuntu #想放到那里麻烦自己配置下哈if [ ! -d "$pre/data_backup/$time" ]then  mkdir -p $pre/data_backup/$time  echo "create $pre/data_backup/$time"else  echo "exist $pre/data_backup/$time"fiif [ -d "$pre/data_backup/$time" ]then mysqldump -h20.66.102.75 -uroot -p123456 --opt winrun user > $pre/data_backup/$time/user.sql mysqldump -h20.66.102.75 -uroot -p123456--opt winrun CategoryInfo  > $pre/data_backup/$time/CategoryInfo.sql mysqldump -h20.66.102.75 -uroot -p123456 --opt winrun admin_info > $pre/data_backup/$time/admin_info.sql mysqldump -h20.66.102.75 -uroot -p123456 --opt winrun admin_loginfo > $pre/data_backup/$time/admin_loginfo.sql mysqldump -h20.66.102.75 -uroot -p123456 --opt winrun admin_notice_info  > $pre/data_backup/$time/admin_notice_info.sql mysqldump -h20.66.102.75 -uroot -p123456--opt winrun advertising_info  > $pre/data_backup/$time/advertising_info.sql mysqldump -h20.66.102.75 -uroot -p123456--opt winrun ajax_request_info  > $pre/data_backup/$time/ajax_request_info.sql mysqldump -h20.66.102.75 -uroot -p123456 --opt winrun bt_file_info  > $pre/data_backup/$time/bt_file_info.sql echo "backup finished" cd $pre/data_backup #enter dir zip -r $time.zip $time/ rm -fr $time #delete cd - echo "zip backup database finished"else echo "can not find backup file"fi

注意，我的密码我已经改了，这个不能告诉你们，所以喜欢copy的孩子麻烦自己该密码。下面我教大家玩下crotab，代码如下：

# Edit this file to introduce tasks to be run by cron.## Each task to run has to be defined through a single line# indicating with different fields when the task will be run# and what command to run for the task## To define the time you can provide concrete values for# minute (m), hour (h), day of month (dom), month (mon),# and day of week (dow) or use '*' in these fields (for 'any').## Notice that tasks will be started based on the cron's system# daemon's notion of time and timezones.## Output of the crontab jobs (including errors) is sent through# email to the user the crontab file belongs to (unless redirected).## For example, you can run a backup of all your user accounts# at 5 a.m every week with:# 0 5 * * 1 tar -zcf /var/backups/home.tgz /home/## For more information see the manual pages of crontab(5) and cron(8)## m h  dom mon dow   command10 1 * * 1,3,5  /home/backup.sh >> /home/backup.log

有用的是最下面的这一句，看到没有，备份完了还得有个log，不然谁知道备份成什么样子了，一点都不懂crontab麻烦自己百度下，我也一时给你讲不明白。

上面是备份的结果，注意，备份完了之后是压缩包的形式，所以请你先安装压缩工具，apt-get install XXXX 不会的还是麻烦百度下，实在简单成狗了。

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