命令：find / -perm -4000 -o -perm > setuid.log

脚本：

#!/bin/bash

find / -perm -4000 -o -perm -2000 > /tmp/setuid.check

for i in $(cat /tmp/setuid.check)

do

        grep $i /root/setuid.log > /dev/null

                if [ "$?" != "0" ]

                then

                        echo "$i isn't in setuid.log!" >> /root/setuid_log_$(date +%F)

                fi

done

rm -rf /tmp/setuid.check   

输出报错日志：

/usr/libexec/utempter/utempter isn't in setuid.log!

/usr/bin/wall isn't in setuid.log!

/usr/bin/write isn't in setuid.log!

/usr/sbin/postdrop isn't in setuid.log!

/usr/sbin/postqueue isn't in setuid.log!

/sbin/netreport isn't in setuid.log!

请问各位大大，为什么我用find命令在前面没有找到这些文件，而后面脚本运行的时候会把这些文件找到呢？