1.安装MUTT邮件客户端
# yum install mutt -y
2.创建脚本
# vi /etc/rc.d/mail_to_bak_daily.sh
版本一：
#!/bin/bash # ========================================================= # 请输入，你想让备份数据放置到哪个独立的目录区 basedir=/backup/daily # ========================================================= PATH=/bin:/usr/bin:/sbin:/usr/sbin::/usr/local/bin:/usr/local/sbin:/usr/local/mysql/bin; export PATH export LANG=C # 定义数据库信息 user=root passwd=123456 # 定义mysql备份路径 mysql_db_bak=$basedir/mysql_db_bak/$(date +%F_%H%M) [ ! -d "$mysql_db_bak" ] && mkdir -p $mysql_db_bak # 定义www备份路径 www_src_bak=$basedir/www_src_bak/$(date +%F_%H%M) [ ! -d "$www_src_bak" ] && mkdir -p $www_src_bak # 定义邮件附件路径 mail_attach_mysql=$mysql_db_bak/wordpress.sql mail_attach_www=$www_src_bak/www.tar.bz2 # 定义邮件标题 mail_subject="www.example.com_daily_backup" # 注：这里的标题之间的字符不能有空格，如有空格会按照邮件名发出,例如daily@www.example.com,backup@www.example.com 本例以下划线代替 # 定义邮件内容 mail_content=/tmp/mail_content.txt mail_code="send MySQL_BAK and WWW_SRC to you at $(date +%F_%H%M)" # 定义邮件地址 mail_address="test@example.com" # 1. 备份MySQL (数据库目录在/usr/local/mysql) mysqldump -u $user -p$passwd --opt --skip-lock-tables --flush-logs --database wordpress > $mysql_db_bak/wordpress.sql # 2.备份www源代码: cd /usr/local tar -jpcf $www_src_bak/www.tar.bz2 www # 3.邮件正文 cd /tmp echo $mail_code > $mail_content # 4.发送附件 yum install mutt -y cat $mail_content |mutt -s $mail_subject -a $mail_attach_mysql -a $mail_attach_www -- $mail_address # 5.清除临时文件 cd /tmp rm -rf $mail_content
版本二：推荐
注：此版本将附件分开发送，对邮箱同时发送多个大附件有收不到的几率的情况，可按照如下版本重新配置
#!/bin/bash PATH=/bin:/usr/bin:/sbin:/usr/sbin::/usr/local/bin:/usr/local/sbin:/usr/local/mysql/bin; export PATH export LANG=C # 系统文件备份路径 basedir=/backup/daily # 数据库信息 user=root passwd=123456 # 定义mysql备份路径 mysql_db_bak=$basedir/mysql_db_bak/$(date +%F_%H%M) if [ ! -d "$mysql_db_bak" ]; then mkdir -p $mysql_db_bak fi # 定义www备份路径 www_src_bak=$basedir/www_src_bak/$(date +%F_%H%M) if [ ! -d "$www_src_bak" ]; then mkdir -p $www_src_bak fi # 备份文件 mysql_bak=$mysql_db_bak/wordpress.sql.gz www_bak=$www_src_bak/www.tar.bz2 # 定义备份文件作为附件的数组 all_bak=($mysql_bak $www_bak) # 邮件标题 mail_subject="www.showerlee.com_daily_backup" # 邮件内容 mail_content_mysql="send MySQL_BAK at $(date +%F_%H%M)" mail_content_www="send WWW_SRC at $(date +%F_%H%M)" # 定义内容数组 mail_content=("$mail_content_mysql" "$mail_content_www") # 邮件地址 mail_address="test@example.com" # 1. 备份MySQL (数据库目录在/usr/local/mysql) mysqldump -u $user -p$passwd --opt --skip-lock-tables --flush-logs --database wordpress | gzip > $mysql_bak # 2.备份www源代码: cd /usr/local tar -jpcf $www_bak www # 3.发送附件 yum install mutt -y for((i=0; i!=${#all_bak[@]}; ++i)) { echo ${mail_content[i]} | mutt -s $mail_subject $mail_address -a ${all_bak[i]} } # 4.清理mutt临时文件 cat /dev/null > ~/sent
版本三：
实现rar分割并附件发送
推荐附件超过50M的用户使用
#/bin/bash PATH=/bin:/usr/bin:/sbin:/usr/sbin::/usr/local/bin:/usr/local/sbin:/usr/local/mysql/bin; export PATH export LANG=C # 系统文件备份路径 basedir=/data/backup/daily # 数据库信息 user=root passwd=123456 # 安装rar rar=$(rar | grep RAR | awk '{print $1}'| sed -n '1p') if [ $? != 0 ];then rar=null fi sys_version=$(uname -m) rar_path="/usr/local/rar" if [ $rar != 'RAR' ];then if [ $sys_version == 'x86_64' ];then wget http://www.rarlab.com/rar/rarlinux-x64-4.2.0.tar.gz tar zxvf rarlinux-x64-4.2.0.tar.gz mv rar $rar_path cd $rar_path make else wget http://www.rarlab.com/rar/rarlinux-4.2.0.tar.gz tar zxvf rarlinux-4.2.0.tar.gz mv rar $rar_path cd $rar_path make fi fi # 定义mysql备份路径 mysql_db_bak=$basedir/mysql_db_bak/$(date +%F_%H%M) if [ ! -d "$mysql_db_bak" ]; then mkdir -p $mysql_db_bak fi # 定义www备份路径 www_src_bak=$basedir/www_src_bak/$(date +%F_%H%M) if [ ! -d "$www_src_bak" ]; then mkdir -p $www_src_bak fi # 备份文件 mysql_bak=$mysql_db_bak/test.sql.gz www_bak=$www_src_bak/www.rar www_bak_part1=$www_src_bak/www.part1.rar www_bak_part2=$www_src_bak/www.part2.rar www_bak_part3=$www_src_bak/www.part3.rar # 定义附件数组 all_bak=($mysql_bak $www_bak_part1 $www_bak_part2 $www_bak_part3) # 邮件标题 mail_subject="showerlee.com_and_yanwenbo.cn_daily_backup" # 邮件内容 mail_content_mysql="send MySQL_BAK at $(date +%F_%H%M)" mail_content_www_p1="send WWW_SRC rarball part1 at $(date +%F_%H%M)" mail_content_www_p2="send WWW_SRC rarball part2 at $(date +%F_%H%M)" mail_content_www_p3="send WWW_SRC rarball part3 at $(date +%F_%H%M)" # 定义内容数组 mail_content=("$mail_content_mysql" "$mail_content_www_p1" "$mail_content_www_p2" "$mail_content_www_p3") # 邮件地址 mail_address1="showerlee@vip.qq.com" mail_address2="kevinywb@vip.qq.com" # 1. 备份MySQL mysqldump -u $user -p$passwd --opt --skip-lock-tables --flush-logs --database test | gzip > $mysql_bak # 2.备份www源代码(分割若干个45m的tar包) if [ -z $rar ];then exit 0 fi cd /data rar a -v45000k $www_bak www # 3.发送附件 for((i=0; i!=${#all_bak[@]}; ++i)) { if [ -f ${all_bak[i]} ]; then echo ${mail_content[i]} | mutt -s $mail_subject $mail_address1 $mail_address2 -a ${all_bak[i]} else echo ${mail_content[i]} | mutt -s $mail_subject $mail_address1 $mail_address2 -a $www_bak break fi } # 4.清理mutt临时文件 cat /dev/null > ~/sent # 5.清理1个月前的备份文件 dir=/data/backup/daily/ find $dir -mtime +30 -type d -name "201*" -print |xargs -i rm -rf {} 2>/dev/null # 6.释放系统缓存 echo 1 > /proc/sys/vm/drop_caches
注:如果报如下错误
复制代码 代码如下:
postdrop: warning: uid=0: File too large sendmail: fatal: root(0): message file too big Error sending message, child exited 75 (Deferred.). Could not send the message.
是由于超过系统默认发送附件大小，修改成如下大小即可（2G）
# postconf -e "message_size_limit = 2048000000" # postconf -e "mailbox_size_limit = 2048000000"
3.执行脚本
# sh /etc/rc.d/mail_to_bak_daily.sh
注：可利用 tail -f /var/log/maillog 查看发送日志
4.测试结果如图：
注：附件较大请耐心等待