时间:2021-07-01 10:21:17 帮助过:3人阅读
mysqlbackup.php:
php //备份mysql set_time_limit(0); date_default_timezone_set('PRC'); //配置 $configs = array( 'host1'=>array( 'localhost', 'root', 'root', array(), //为空备份全部数据库,否则备份这些数据库 'D:/xampp/mysql/bin/mysqldump', //备份工具 dirname(__FILE__)."/localhost", //目录加主机名 5, //删除前5天的SQL文件 ),); foreach($configs as $config) { $logsfile = $config[5].'/'.date('ymd').'.log'; logs($logsfile, $config[0]." backup\n"); backup($config); } function backup($config) { list($host, $username, $password, $databases, $backuptool, $backupdir, $day) = $config; $command = "$backuptool -u $username -h $host -p$password %s > %s"; $logsfile = $backupdir.'/'.date('ymd').'.log'; $backfilename = $backupdir.'/'.date('Ymd')."%s.sql"; //备份的SQL文件,以数据库命名 if(!is_dir($backupdir)) { mkdir($backupdir, 0755 , true); } //删除前十天的备份文件 get_dir_files($backupdir, $returnval); if($returnval) { foreach($returnval as $v) { $time = filemtime($v); if($time < strtotime("-$day day") && (pathinfo($v,PATHINFO_EXTENSION))=='zip') { unlink($v); } } } if(!$databases) { $databases = getdatabases($host, $username, $password); } //开始备份 foreach($databases as $database) { $outputfile = sprintf($backfilename, $database); $execcommand = sprintf($command, $database, $outputfile); try { if(system($execcommand) === false) { throw new Exception('execute backup command error!'); } //文件过大时会压缩失败(测试的那个SQL文件4.62G,压缩失败,没创建那个压缩文件。测试2.81G可以) if(file_exists($outputfile)) { $zip = new ZipArchive(); $filename = pathinfo($outputfile,PATHINFO_FILENAME); $zipname = $backupdir.'/'.$filename.'.zip'; //zip文件的路径 if($zip->open($zipname, ZIPARCHIVE::OVERWRITE) === true) { $zip->addFile($outputfile, $filename.'.'.pathinfo($outputfile,PATHINFO_EXTENSION)); $zip->close(); }else { throw new Exception('ZipArchive open error!'); } } if(!file_exists($zipname) || (filesize($zipname)==0)) { throw new Exception('ZipArchive create error!'); } $message = date('Y-m-d H:i:s')."$database backup complete!\r\n"; logs($logsfile, $message); }catch(Exception $e) { $message = date('Y-m-d H:i:s').$e->getLine().' '.$e->getMessage()."\r\n"; logs($logsfile, $message); } } } function getdatabases($host, $username, $password) { $databases = array(); try { $mysqli = new Mysqli($host, $username, $password); $result = $mysqli->query("show databases"); if($result) { while($row = $result->fetch_row()) { (current($row)!='information_schema' && current($row)!='mysql' && current($row)!='performance_schema') && $databases[] = current($row); } $result->free_result(); $mysqli->close(); }else { throw new Exception('No databases!'); } }catch(Exception $e) { $message = date('Y-m-d H:i:s').$e->getLine().' '.$e->getMessage()."\r\n"; logs($logsfile, $message); } return $databases; } function logs($file, $contents) { $dirname = dirname($file); try { if(!is_dir(dirname($file)) || !is_writeable(dirname($file))) { throw new Exception("file is not direcotory or file can't write"); } file_put_contents($file, $contents, FILE_APPEND); }catch(Exception $e) { $message = date('Y-m-d H:i:s').$e->getLine.' '.$e->getMessage()."\r\n"; logs($logfile, $message); } } //获取当前目录下的文件(不包含子文件夹) function get_dir_files($currPath, &$returnVal=array()) { if(is_dir($currPath)) { $currPath = (substr($currPath,-1,1)=='/')?substr($currPath,0,strlen($currPath)-1):$currPath; if($handler = opendir($currPath)) { while(($fileName = readdir($handler)) !== false) { if($fileName != '.' && $fileName != '..' && $fileName[0] != '.') { if(is_file($currPath . '/' . $fileName)) { $returnVal[] = $currPath . '/' . $fileName; } } } closedir($handler); } } } ?>
mysqlbackup.bat:
D:\xampp\php\php.exe -q D:\wamp\www\php_lib\basic\mysqlbackup.php
pause;
linux系统shell备份MySQL:
#!/bin/sh # sed -i 's/^M//g' /home/taskschd/backup.sh #注意:^M的输入方式是 Ctrl + v ,然后Ctrl + M dbs=(test) ROOT_DIR=/home/backup/ for dbname in ${dbs[@]} do #备份数据 BACKUP_DIR=$ROOT_DIR$dbname'_'$(date +%Y%m%d).sql /usr/local/mysql/bin/mysqldump --opt -uroot -pabc $dbname > $BACKUP_DIR #删除三天前数据 delete_file=$dbname'_'$(date -d "-5 day" "+%Y%m%d")'.sql' rm $ROOT_DIR$delete_file done
另为一篇shell备份mysql脚本:http://www.cnblogs.com/luoyunshu/p/3435378.html
方法一、适合所有格式的mysql数据库,通过对数据库导出导进写个脚本定时执行:
1.导出整个数据库 mysqldump -u 用户名 -p 数据库名 > 导出的文件名 mysqldump -u wcnc -p smgp_apps_wcnc > /存放路径/wcnc.sql
2.导出一个表 mysqldump -u 用户名 -p 数据库名 表名> 导出的文件名 mysqldump -u wcnc -p smgp_apps_wcnc users> /存放路径/wcnc_users.sql
3.导出一个数据库结构 mysqldump -u wcnc -p -d --add-drop-table smgp_apps_wcnc >/存放路径/wcnc_db.sql
定义:
-d 没有数据
--add-drop-table 在每个create语句之前增加一个drop table
4.导入数据库 常用source 命令 进入mysql数据库控制台:
如mysql -u root -p mysql>use 数据库
方法二、针对mysql数据表格式为MyISAM的
假如数据文件在/var/lib/mysql
那么直接写个脚本
cp -r /var/lib/mysql /备份到的文件夹路径
隔机备份用rsync增量,或定时完整备份。
可能是你不会用吧
可以将这个脚本放进crontab,每天凌晨执行一次,自动备份
这个脚本每天最多只执行一次,而且只保留最近五天的备份在服务器上。
代码:
#!/bin/bash
#This is a ShellScript For Auto DB Backup
#Powered by aspbiz
#2004-09
#Setting
#设置数据库名,数据库登录名,密码,备份路径,日志路径,数据文件位置,以及备份方式
#默认情况下备份方式是tar,还可以是mysqldump,mysqldotcopy
#默认情况下,用root(空)登录mysql数据库,备份至/root/dbxxxxx.tgz
DBName=mysql
DBUser=root
DBPasswd=
BackupPath=/root/
LogFile=/root/db.log
DBPath=/var/lib/mysql/
#BackupMethod=mysqldump
#BackupMethod=mysqlhotcopy
#BackupMethod=tar
#Setting End
NewFile="$BackupPath"db$(date +%y%m%d).tgz
DumpFile="$BackupPath"db$(date +%y%m%d)
OldFile="$BackupPath"db$(date +%y%m%d --date='5 days ago').tgz
echo "-------------------------------------------" >> $LogFile
echo $(date +"%y-%m-%d %H:%M:%S") >> $LogFile
echo "--------------------------" >> $LogFile
#Delete Old File
if [ -f $OldFile ]
then
rm -f $OldFile >> $LogFile 2>&1
echo "[$OldFile]Delete Old File Success!" >> $LogFile
else
echo "[$OldFile]No Old Backup File!" >> $LogFile
fi
if [ -f $NewFile ]
then
echo "[$NewFile]The Backup File is exists,Can't Backup!" >> $LogFile
else
case $BackupMethod in
mysqldump)
if [ -z $DBPasswd ]
then
mysqldump -u $DBUser --opt $DBName > $DumpFile
else
mysqldump -u $DBUser -p$DBPasswd --opt $DBName > $DumpFile
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http://www.bkjia.com/PHPjc/834767.htmlwww.bkjia.comtruehttp://www.bkjia.com/PHPjc/834767.htmlTechArticleMySQL备份脚本,mysql脚本 mysqlbackup.php: ? php // 备份mysql set_time_limit (0 ); date_default_timezone_set( 'PRC' ); // 配置 $configs = array ( 'host1'= array ( 'localh...