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shell简单全备mysql脚本案例 [root@cacti mysql]# cat backup.sh #!/bin/sh   #created by taiyang#2012-9-16#function:backup mysql database #set local variablesdbname=backupbackuppath=/mysqlbak/mysqlbak/dumpfile=${backuppath}${dbname}`date +%y%m%d_%h%m%s`.bak v_username='root'if [ $v_username != 'root' ];thenecho error:the script must be run as mysqlexit 1fi   echo backup database path:$dumpfileecho ------------------------------ dateecho ****************************echo backup database beginecho **************************** mysqldump -uroot -proot --opt $dbname > $dumpfile echo **************************** echo backup database endecho ****************************date #delete backups before 5 daysfind $backuppath -ctime +5 -name '*.bak' -exec rm {} /;[root@cacti mysql]#    从备份脚本当中进行还原数据库的信息；
 [root@cacti mysqlbak]# lsbackup120928_114307.bak  backup120928_114556.bak  cacti120928_105558.bakbackup120928_114309.bak  cacti120928_105044.bak   cacti120928_110443.bakbackup120928_114310.bak  cacti120928_105155.bak   cacti120928_110448.bakbackup120928_114311.bak  cacti120928_105457.bak   cacti120928_110449.bak[root@cacti mysqlbak]# pwd /mysqlbak/mysqlbak[root@cacti mysqlbak]#[root@cacti ~]# mysql -hlocalhost -uroot -proot backup /mysqlbak/backup120928_114556.bak 
 [root@cacti ~]# mysql -uroot -prootwelcome to the mysql monitor.  commands end with ; or /g.your mysql connection id is 860server version: 5.0.22-log type 'help;' or '/h' for help. type '/c' to clear the buffer.   mysql> use backupdatabase changedmysql> show tables;+------------------+| tables_in_backup |+------------------+| b                | | t                | +------------------+2 rows in set (0.00 sec) mysql> exitbye
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