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
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.
