如果没安装md5sum工具

yum install isomd5sum

检查文件是否被串改

#!/bin/bash

check_dir="/boot /etc /usr"

for i in $check_dir

do

find $i -type f -exec md5sum {} \; |sort > /server/md5$i.new

diff /server/md5$i.md5 /server/md5$i.new >> /server/log/md5.log

done