CentOS MySQL自動備份shell腳本

先執行  vim/mysqlBack/back.sh

而後添加如下內容

## 記錄日誌  # 如下配置信息請本身修改 

mysql_user="root" #MySQL備份用戶
mysql_password="pass" #MySQL備份用戶的密碼
mysql_host="192.168.…………"
mysql_port="3306"
mysql_charset="utf8" #MySQL編碼

backup_db_arr=("xxx" "test") #要備份的數據庫名稱，多個用空格分開隔開 如("db1" "db2" "db3")
backup_location=/mysqlBack/mysql  #備份數據存放位置，末尾請不要帶"/",此項能夠保持默認，程序會自動建立文件夾

expire_backup_delete="ON"  #是否開啓過時備份刪除 ON爲開啓 OFF爲關閉
expire_days=5  #過時時間天數 默認爲三天，此項只有在expire_backup_delete開啓時有效

# 本行開始如下不須要修改
backup_time=`date +%Y%m%d%H%M` #定義備份詳細時間
backup_Ymd=`date +%Y-%m-%d` #定義備份目錄中的年月日時間
backup_3ago=`date -d '3 days ago' +%Y-%m-%d` #3天以前的日期
backup_dir=$backup_location/$backup_Ymd #備份文件夾全路徑
welcome_msg="Welcome to use MySQL backup tools!" #歡迎語

# 鏈接到mysql數據庫，沒法鏈接則備份退出
mysql -h$mysql_host -P$mysql_port -u$mysql_user -p$mysql_password <<end
use mysql;
select host,user from user where user='root' and host='39.106.27.114';
exit
end
 
flag=`echo $?`
if [ $flag != "0" ]; then
echo "ERROR:Can't connect mysql server! backup stop!"  
exit
else
echo "MySQL connect ok! Please wait......"

# 判斷有沒有定義備份的數據庫，若是定義則開始備份，不然退出備份
if [ "$backup_db_arr" != "" ];then
#dbnames=$(cut -d ',' -f1-5 $backup_database)
#echo "arr is (${backup_db_arr[@]})"  
for dbname in ${backup_db_arr[@]}
do
echo "database $dbname backup start..."
`mkdir -p $backup_dir`
`mysqldump -h$mysql_host -P$mysql_port -u$mysql_user -p$mysql_password $dbname --default-character-set=$mysql_charset | gzip > $backup_dir/$dbname-$backup_time.sql.gz`
flag=`echo $?`
if [ $flag == "0" ];then
echo "database $dbname success backup to $backup_dir/$dbname-$backup_time.sql.gz"  
else
echo "database $dbname backup fail!"  
 
done
else
echo "ERROR:No database to backup! backup stop" 
exit
fi

# 若是開啓了刪除過時備份，則進行刪除操做
if [ "$expire_backup_delete" == "ON" -a "$backup_location" != "" ];then
#`find $backup_location/ -type d -o -type f -ctime +$expire_days -exec rm -rf {} \;`
`find $backup_location/ -type d -mtime +$expire_days | xargs rm -rf`
echo "Expired backup data delete complete!" 
fi
echo "All database backup success! Thank you!"  
exit
fi

保存

chmod 600 /mysqlBack/back.sh

chmod +x /mysqlBack/back.sh

而後添加定時執行

crontab -e

添加如下內容

00 03 * * 1 /mysqlBack/back.sh

保存

重啓 crontab 服務

service crond restart