腳本如下：
#!bin/bash

backuppath=/data/mysql/backup
date=$(date +%Y%m%d%H%M)
SQLuser=root
SQLpwd=password
mysqldump=/usr/local/mysql/bin/mysqldump
mysql=/usr/local/mysql/bin/mysql

HIS_Date=`date -d $(date -d "-30 day" +%Y%m%d) +%s`  #取30天之前的時間戳
Sql_Date=`date -d $(date -d "-7 day" +%Y%m%d) +%s`  #取7天之前的時間戳
 

#進入mysql數據庫，清除zabbix歷史數據
$mysql -u$SQLuser -p$SQLpwd -e"
    use zabbix;
    delete from history WHERE ‘clock‘ < $Sql_Date;
    delete from history_uint WHERE ‘clock‘ < $Sql_Date;
    delete from history_str WHERE ‘clock‘ < $Sql_Date;
    delete from history_text WHERE ‘clock‘ < $Sql_Date;
    delete from history_log WHERE ‘clock‘ < $Sql_Date;
    exit
    "
 

#建立備份目錄

if [ ! -e $backuppath ];then
    mkdir -p $backuppath
fi

#開始備份zabbix庫
$mysqldump -u$SQLuser -p$SQLpwd zabbix >$backuppath/zabbix$date.sql

#刪除1個月前的備份數據
find /data/mysql/backup -mtime +30 -type f -name \zabbix*.sql -exec rm -f {} \;

在數據庫歷史數據過大，可以考慮truncate掉歷史數據。

$mysql -u$SQLuser -p$SQLpwd -e"
    use zabbix;
        truncate table history;
        truncate table history_log;
    truncate table history_uint;
    truncate table history_str;
    truncate table history_text;
        exit
        "
 

轉自
mysql數據庫定時備份

(出處: 樂維)

mysql數據庫定時備份