mysqlbackup.php:
<?<span>php </span><span>//</span><span>备份mysql</span> <span>set_time_limit</span>(0<span>); date_default_timezone_set(</span>'PRC'<span>); </span><span>//</span><span>配置</span> <span>$configs</span> = <span>array</span><span>( </span>'host1'=><span>array</span><span>( </span>'localhost', 'root', 'root', <span>array</span>(), <span>//</span><span>为空备份全部数据库,否则备份这些数据库</span> 'D:/xampp/mysql/bin/mysqldump', <span>//</span><span>备份工具</span> <span>dirname</span>(<span>__FILE__</span>)."/localhost", <span>//</span><span>目录加主机名</span> 5, <span>//</span><span>删除前5天的SQL文件</span> ),<span>); </span><span>foreach</span>(<span>$configs</span> <span>as</span> <span>$config</span><span>) { </span><span>$logsfile</span> = <span>$config</span>[5].'/'.<span>date</span>('ymd').'.log'<span>; logs(</span><span>$logsfile</span>, <span>$config</span>[0]." backup\n"<span>); backup(</span><span>$config</span><span>); } </span><span>function</span> backup(<span>$config</span><span>) { </span><span>list</span>(<span>$host</span>, <span>$username</span>, <span>$password</span>, <span>$databases</span>, <span>$backuptool</span>, <span>$backupdir</span>, <span>$day</span>) = <span>$config</span><span>; </span><span>$command</span> = "<span>$backuptool</span> -u <span>$username</span> -h <span>$host</span> -p<span>$password</span> %s > %s"<span>; </span><span>$logsfile</span> = <span>$backupdir</span>.'/'.<span>date</span>('ymd').'.log'<span>; </span><span>$backfilename</span> = <span>$backupdir</span>.'/'.<span>date</span>('Ymd')."%s.sql"; <span>//</span><span>备份的SQL文件,以数据库命名</span> <span>if</span>(!<span>is_dir</span>(<span>$backupdir</span><span>)) { </span><span>mkdir</span>(<span>$backupdir</span>, 0755 , <span>true</span><span>); } </span><span>//</span><span>删除前十天的备份文件</span> get_dir_files(<span>$backupdir</span>, <span>$returnval</span><span>); </span><span>if</span>(<span>$returnval</span><span>) { </span><span>foreach</span>(<span>$returnval</span> <span>as</span> <span>$v</span><span>) { </span><span>$time</span> = <span>filemtime</span>(<span>$v</span><span>); </span><span>if</span>(<span>$time</span> < <span>strtotime</span>("-<span>$day</span> day") && (<span>pathinfo</span>(<span>$v</span>,PATHINFO_EXTENSION))=='zip'<span>) { </span><span>unlink</span>(<span>$v</span><span>); } } } </span><span>if</span>(!<span>$databases</span><span>) { </span><span>$databases</span> = getdatabases(<span>$host</span>, <span>$username</span>, <span>$password</span><span>); } </span><span>//</span><span>开始备份</span> <span>foreach</span>(<span>$databases</span> <span>as</span> <span>$database</span><span>) { </span><span>$outputfile</span> = <span>sprintf</span>(<span>$backfilename</span>, <span>$database</span><span>); </span><span>$execcommand</span> = <span>sprintf</span>(<span>$command</span>, <span>$database</span>, <span>$outputfile</span><span>); </span><span>try</span><span> { </span><span>if</span>(<span>system</span>(<span>$execcommand</span>) === <span>false</span><span>) { </span><span>throw</span> <span>new</span> <span>Exception</span>('execute backup command error!'<span>); } </span><span>//</span><span>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)</span> <span>if</span>(<span>file_exists</span>(<span>$outputfile</span><span>)) { </span><span>$zip</span> = <span>new</span><span> ZipArchive(); </span><span>$filename</span> = <span>pathinfo</span>(<span>$outputfile</span>,<span>PATHINFO_FILENAME); </span><span>$zipname</span> = <span>$backupdir</span>.'/'.<span>$filename</span>.'.zip'; <span>//</span><span>zip文件的路径</span> <span>if</span>(<span>$zip</span>->open(<span>$zipname</span>, ZIPARCHIVE::OVERWRITE) === <span>true</span><span>) { </span><span>$zip</span>->addFile(<span>$outputfile</span>, <span>$filename</span>.'.'.<span>pathinfo</span>(<span>$outputfile</span>,<span>PATHINFO_EXTENSION)); </span><span>$zip</span>-><span>close(); }</span><span>else</span><span> { </span><span>throw</span> <span>new</span> <span>Exception</span>('ZipArchive open error!'<span>); } } </span><span>if</span>(!<span>file_exists</span>(<span>$zipname</span>) || (<span>filesize</span>(<span>$zipname</span>)==0<span>)) { </span><span>throw</span> <span>new</span> <span>Exception</span>('ZipArchive create error!'<span>); } </span><span>$message</span> = <span>date</span>('Y-m-d H:i:s')."<span>$database</span> backup complete!\r\n"<span>; logs(</span><span>$logsfile</span>, <span>$message</span><span>); }</span><span>catch</span>(<span>Exception</span> <span>$e</span><span>) { </span><span>$message</span> = <span>date</span>('Y-m-d H:i:s').<span>$e</span>->getLine().' '.<span>$e</span>->getMessage()."\r\n"<span>; logs(</span><span>$logsfile</span>, <span>$message</span><span>); } } } </span><span>function</span> getdatabases(<span>$host</span>, <span>$username</span>, <span>$password</span><span>) { </span><span>$databases</span> = <span>array</span><span>(); </span><span>try</span><span> { </span><span>$mysqli</span> = <span>new</span> Mysqli(<span>$host</span>, <span>$username</span>, <span>$password</span><span>); </span><span>$result</span> = <span>$mysqli</span>->query("show databases"<span>); </span><span>if</span>(<span>$result</span><span>) { </span><span>while</span>(<span>$row</span> = <span>$result</span>-><span>fetch_row()) { (</span><span>current</span>(<span>$row</span>)!='information_schema' && <span>current</span>(<span>$row</span>)!='mysql' && <span>current</span>(<span>$row</span>)!='performance_schema') && <span>$databases</span>[] = <span>current</span>(<span>$row</span><span>); } </span><span>$result</span>-><span>free_result(); </span><span>$mysqli</span>-><span>close(); }</span><span>else</span><span> { </span><span>throw</span> <span>new</span> <span>Exception</span>('No databases!'<span>); } }</span><span>catch</span>(<span>Exception</span> <span>$e</span><span>) { </span><span>$message</span> = <span>date</span>('Y-m-d H:i:s').<span>$e</span>->getLine().' '.<span>$e</span>->getMessage()."\r\n"<span>; logs(</span><span>$logsfile</span>, <span>$message</span><span>); } </span><span>return</span> <span>$databases</span><span>; } </span><span>function</span> logs(<span>$file</span>, <span>$contents</span><span>) { </span><span>$dirname</span> = <span>dirname</span>(<span>$file</span><span>); </span><span>try</span><span> { </span><span>if</span>(!<span>is_dir</span>(<span>dirname</span>(<span>$file</span>)) || !<span>is_writeable</span>(<span>dirname</span>(<span>$file</span><span>))) { </span><span>throw</span> <span>new</span> <span>Exception</span>("file is not direcotory or file can't write"<span>); } </span><span>file_put_contents</span>(<span>$file</span>, <span>$contents</span>,<span> FILE_APPEND); }</span><span>catch</span>(<span>Exception</span> <span>$e</span><span>) { </span><span>$message</span> = <span>date</span>('Y-m-d H:i:s').<span>$e</span>->getLine.' '.<span>$e</span>->getMessage()."\r\n"<span>; logs(</span><span>$logfile</span>, <span>$message</span><span>); } } </span><span>//</span><span>获取当前目录下的文件(不包含子文件夹)</span> <span>function</span> get_dir_files(<span>$currPath</span>, &<span>$returnVal</span>=<span>array</span><span>()) { </span><span>if</span>(<span>is_dir</span>(<span>$currPath</span><span>)) { </span><span>$currPath</span> = (<span>substr</span>(<span>$currPath</span>,-1,1)=='/')?<span>substr</span>(<span>$currPath</span>,0,<span>strlen</span>(<span>$currPath</span>)-1):<span>$currPath</span><span>; </span><span>if</span>(<span>$handler</span> = <span>opendir</span>(<span>$currPath</span><span>)) { </span><span>while</span>((<span>$fileName</span> = <span>readdir</span>(<span>$handler</span>)) !== <span>false</span><span>) { </span><span>if</span>(<span>$fileName</span> != '.' && <span>$fileName</span> != '..' && <span>$fileName</span>[0] != '.'<span>) { </span><span>if</span>(<span>is_file</span>(<span>$currPath</span> . '/' . <span>$fileName</span><span>)) { </span><span>$returnVal</span>[] = <span>$currPath</span> . '/' . <span>$fileName</span><span>; } } } </span><span>closedir</span>(<span>$handler</span><span>); } } } </span>?>
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/<span>sh</span><span> # </span><span>sed</span> -i <span>'</span><span>s/^M//g</span><span>'</span> /home/taskschd/backup.<span>sh</span><span> #注意:</span>^M的输入方式是 Ctrl + v ,然后Ctrl +<span> M dbs</span>=<span>(test) ROOT_DIR</span>=/home/backup/ <span>for</span> dbname <span>in</span><span> ${dbs[@]} </span><span>do</span><span> #备份数据 BACKUP_DIR</span>=$ROOT_DIR$dbname<span>'</span><span>_</span><span>'</span>$(<span>date</span> +%Y%m%<span>d).sql </span>/usr/local/mysql/bin/mysqldump --opt -uroot -pabc $dbname ><span> $BACKUP_DIR #删除三天前数据 delete_file</span>=$dbname<span>'</span><span>_</span><span>'</span>$(<span>date</span> -d <span>"</span><span>-5 day</span><span>"</span> <span>"</span><span>+%Y%m%d</span><span>"</span>)<span>'</span><span>.sql</span><span>'</span> <span>rm</span><span> $ROOT_DIR$delete_file </span><span>done</span>
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
f......余下全文>>