Linux下mysql数据库备份方法小结

mysqldump -u root -p db1 > db1.sql(将数据库db1备份到db1.sql中)

mysql -u root -p db1 < db1.sql(从备份文件db1.sql中导入数据到数据库db1中)

cd /var/lib/mysql(进入mysql目录)
tar -zcvf db1.tar.gz db1(打包db1目录，如果提示没有权限，在前面加上sudo，提示输入密码后即可)

mysql -u root -p（输入密码后进入mysql）
create database db1;(创建一个名为db1的数据库)
exit(退出mysql)
cp db1.tar.gz /var/lib/mysql(将打包文件拷贝到mysql目录下)
cd /var/lib/mysql(进入mysql目录)
tar -zxvf db1.tar.gz(解压到当前目录)

#!/bin/bash
#Mysql autobackup shell#write by tuspark.cn
#-------------------数据库相关的用户名、密码、需要备份的数据库名、备份目录等
dbuser=root
dbpasswd=XXXXX
dbserver=localhost
dbname=XXXXX
dbopt=--opt
backupdir=/dcbackup/
#-------------------是否开启FTP远程备份，0为否，1为是。
copytoftp=1
ftpserver=XXXXX
ftpuser=XXXXX
ftppasswd=XXXXX
#-------------------以下参数
fileprefix=dcradiusdump
filename=$backupdir`date +%F`.sql
newfile=$fileprefix-`date +%F`.tar.gz
keepdays=10
#-------------------以下为备份时的日志
logfile=/var/log/mysqlbackup.log
logtmp=/var/log/mybackup.tmp
#===============================================
if [ ! -d $backupdir ]
then
echo "$backupdir is not exist, then make ..." >> $logfile
mkdir -p $backupdir
fi
echo "start====================================>">>$logfile
echo "Beginning backup `date '+%F %T'`" >>$logfile
echo "Delete $keepdays days ago files ..." >>$logfile
find $backupdir -name $fileprefix* -mtime +$keepdays -fls $logtmp -exec rm {} ;
echo "Deleted Backup file is :">>$logfile
cat $logtmp >>$logfile
echo "Delete old file Success!" >>$logfile
if [ -f $backupdir$newfile ]
then
echo "$newfile backup exist, backup stop ..." >>$logfile
else
if [ -z $dbpasswd ]
then
mysqldump -u$dbuser -h$dbserver $dbopt $dbname >$dumpfilename
else
mysqldump -u$dbuser -p$dbpasswd -h$dbserver $dbopt $dbname >$dumpfilename
fi
tar czvf $backupdir$newfile $dumpfilename >>$logfile 2>&1
echo "$backupdir$newfile Backup Success!" >>$logfile
rm -fr $dumpfilename
if [ $copytoftp = 1 ]; then
if [ -z $ftpserver ];then
echo "Ftp Server not set,Copy to Ftp Failed ..." >>$logfile
exit 1
elif [ -z $ftpuser ];then
echo "Ftp user not set, Copy to Ftp Failed ..." >>$logfile
exit 2
elif [ -z $ftppasswd ]; then
echo "Ftp password not set, Copy to Ftp Failed ..." >>$logfile
exit 3
else
echo "Start copy to Ftp server ...." >> $logfile
ftp -n>$logfile
fi