# 本行开始以下不需要修改 backup_time=`date +%Y%m%d%H%M` #定义备份详细时间 backup_Ymd=`date +%Y-%m-%d` #定义备份目录中的年月日时间 backup_3ago=`date -d '3 days ago' +%Y-%m-%d` #3天之前的日期 backup_dir=$backup_location/$backup_Ymd#备份文件夹全路径 welcome_msg="Welcome to use MySQL backup tools!"#欢迎语
# 判断MYSQL是否启动,mysql没有启动则备份退出 mysql_ps=`ps -ef |grep mysql |wc -l` mysql_listen=`netstat -an |grep LISTEN |grep $mysql_port|wc -l` if [ [$mysql_ps == 0] -o [$mysql_listen == 0] ]; then echo"ERROR:MySQL is not running! backup stop!" exit else echo$welcome_msg fi
# 连接到mysql数据库,无法连接则备份退出 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='localhost'; exit end
flag=`echo $?` if [ $flag != "0" ]; then echo"ERROR:Can't connect mysql server! backup stop!" exit else echo"MySQL connect ok! Please wait......" # 判断有没有定义备份的数据库,如果定义则开始备份,否则退出备份 if [ "$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 $dbname backup fail!" fi
done else echo"ERROR:No database to backup! backup stop" exit fi # 如果开启了删除过期备份,则进行删除操作 if [ "$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