[student@desktop Desktop]$ find /etc -name passwd 2>/dev/null

/etc/passwd

/etc/pam.d/passwd

[student@desktop Desktop]$ find /etc -name passwd 2>/mnt/find.err >/mnt/find.out

bash: /mnt/find.err: Permission denied

[student@desktop Desktop]$ find /etc -name passwd 2>/mnt/find.err

bash: /mnt/find.err: Permission denied

[student@desktop Desktop]$ ls -ld /mnt

drwxr-xr-x. 2 root root 68 Sep  6 16:27 /mnt

[student@desktop Desktop]$ su - root

Password: 

Last login: Tue Sep  6 16:46:50 EDT 2016 from 172.25.104.250 on pts/1

[root@desktop ~]# chmod 777 -R /mnt

[root@desktop ~]# ls -ld /mnt

drwxrwxrwx. 2 root root 68 Sep  6 16:27 /mnt

[root@desktop ~]# logout

[student@desktop Desktop]$ find /etc -name passwd 2>/mnt/find.err >/mnt/find.out

[student@desktop Desktop]$ cat /mnt/find.err

find: ‘/etc/pki/CA/private’: Permission denied

find: ‘/etc/pki/rsyslog’: Permission denied

find: ‘/etc/audit’: Permission denied

find: ‘/etc/polkit-1/rules.d’: Permission denied

find: ‘/etc/polkit-1/localauthority’: Permission denied

find: ‘/etc/grub.d’: Permission denied

find: ‘/etc/selinux/targeted/modules/active’: Permission denied

find: ‘/etc/lvm/archive’: Permission denied

find: ‘/etc/lvm/backup’: Permission denied

find: ‘/etc/lvm/cache’: Permission denied

find: ‘/etc/dhcp’: Permission denied

find: ‘/etc/firewalld’: Permission denied

find: ‘/etc/audisp’: Permission denied

find: ‘/etc/sudoers.d’: Permission denied

find: ‘/etc/ipsec.d’: Permission denied

find: ‘/etc/libvirt’: Permission denied

find: ‘/etc/cups/ssl’: Permission denied

find: ‘/etc/named’: Permission denied

[student@desktop Desktop]$ cat /mnt/find.out

/etc/passwd

/etc/pam.d/passwd

[student@desktop Desktop]$ find /etc -name passwd &>/mnt/find.all

[student@desktop Desktop]$ cat /mnt/find.all

find: ‘/etc/pki/CA/private’: Permission denied

find: ‘/etc/pki/rsyslog’: Permission denied

find: ‘/etc/audit’: Permission denied

/etc/passwd

find: ‘/etc/polkit-1/rules.d’: Permission denied

find: ‘/etc/polkit-1/localauthority’: Permission denied

find: ‘/etc/grub.d’: Permission denied

find: ‘/etc/selinux/targeted/modules/active’: Permission denied

/etc/pam.d/passwd

find: ‘/etc/lvm/archive’: Permission denied

find: ‘/etc/lvm/backup’: Permission denied

find: ‘/etc/lvm/cache’: Permission denied

find: ‘/etc/dhcp’: Permission denied

find: ‘/etc/firewalld’: Permission denied

find: ‘/etc/audisp’: Permission denied

find: ‘/etc/sudoers.d’: Permission denied

find: ‘/etc/ipsec.d’: Permission denied

find: ‘/etc/libvirt’: Permission denied

find: ‘/etc/cups/ssl’: Permission denied

find: ‘/etc/named’: Permission denied

[student@desktop Desktop]$ find /etc -name passwd &>>/mnt/find.all

[student@desktop Desktop]$ cat /mnt/find.all

find: ‘/etc/pki/CA/private’: Permission denied

find: ‘/etc/pki/rsyslog’: Permission denied

find: ‘/etc/audit’: Permission denied

/etc/passwd

find: ‘/etc/polkit-1/rules.d’: Permission denied

find: ‘/etc/polkit-1/localauthority’: Permission denied

find: ‘/etc/grub.d’: Permission denied

find: ‘/etc/selinux/targeted/modules/active’: Permission denied

/etc/pam.d/passwd

find: ‘/etc/lvm/archive’: Permission denied

find: ‘/etc/lvm/backup’: Permission denied

find: ‘/etc/lvm/cache’: Permission denied

find: ‘/etc/dhcp’: Permission denied

find: ‘/etc/firewalld’: Permission denied

find: ‘/etc/audisp’: Permission denied

find: ‘/etc/sudoers.d’: Permission denied

find: ‘/etc/ipsec.d’: Permission denied

find: ‘/etc/libvirt’: Permission denied

find: ‘/etc/cups/ssl’: Permission denied

find: ‘/etc/named’: Permission denied

find: ‘/etc/pki/CA/private’: Permission denied

find: ‘/etc/pki/rsyslog’: Permission denied

find: ‘/etc/audit’: Permission denied

/etc/passwd

find: ‘/etc/polkit-1/rules.d’: Permission denied

find: ‘/etc/polkit-1/localauthority’: Permission denied

find: ‘/etc/grub.d’: Permission denied

find: ‘/etc/selinux/targeted/modules/active’: Permission denied

/etc/pam.d/passwd

find: ‘/etc/lvm/archive’: Permission denied

find: ‘/etc/lvm/backup’: Permission denied

find: ‘/etc/lvm/cache’: Permission denied

find: ‘/etc/dhcp’: Permission denied

find: ‘/etc/firewalld’: Permission denied

find: ‘/etc/audisp’: Permission denied

find: ‘/etc/sudoers.d’: Permission denied

find: ‘/etc/ipsec.d’: Permission denied

find: ‘/etc/libvirt’: Permission denied

find: ‘/etc/cups/ssl’: Permission denied

find: ‘/etc/named’: Permission denied

[student@desktop Desktop]$ find /etc -name passwd &>/dev/null

[student@desktop Desktop]$ find /etc -name passwd 2>&1 | tee find

find: ‘/etc/pki/CA/private’: Permission denied

find: ‘/etc/pki/rsyslog’: Permission denied

find: ‘/etc/audit’: Permission denied

/etc/passwd

find: ‘/etc/polkit-1/rules.d’: Permission denied

find: ‘/etc/polkit-1/localauthority’: Permission denied

find: ‘/etc/grub.d’: Permission denied

find: ‘/etc/selinux/targeted/modules/active’: Permission denied

/etc/pam.d/passwd

find: ‘/etc/lvm/archive’: Permission denied

find: ‘/etc/lvm/backup’: Permission denied

find: ‘/etc/lvm/cache’: Permission denied

find: ‘/etc/dhcp’: Permission denied

find: ‘/etc/firewalld’: Permission denied

find: ‘/etc/audisp’: Permission denied

find: ‘/etc/sudoers.d’: Permission denied

find: ‘/etc/ipsec.d’: Permission denied

find: ‘/etc/libvirt’: Permission denied

find: ‘/etc/cups/ssl’: Permission denied

find: ‘/etc/named’: Permission denied

[student@desktop Desktop]$ cat find

find: ‘/etc/pki/CA/private’: Permission denied

find: ‘/etc/pki/rsyslog’: Permission denied

find: ‘/etc/audit’: Permission denied

/etc/passwd

find: ‘/etc/polkit-1/rules.d’: Permission denied

find: ‘/etc/polkit-1/localauthority’: Permission denied

find: ‘/etc/grub.d’: Permission denied

find: ‘/etc/selinux/targeted/modules/active’: Permission denied

/etc/pam.d/passwd

find: ‘/etc/lvm/archive’: Permission denied

find: ‘/etc/lvm/backup’: Permission denied

find: ‘/etc/lvm/cache’: Permission denied

find: ‘/etc/dhcp’: Permission denied

find: ‘/etc/firewalld’: Permission denied

find: ‘/etc/audisp’: Permission denied

find: ‘/etc/sudoers.d’: Permission denied

find: ‘/etc/ipsec.d’: Permission denied

find: ‘/etc/libvirt’: Permission denied

find: ‘/etc/cups/ssl’: Permission denied

find: ‘/etc/named’: Permission denied

[student@desktop Desktop]$ find /etc -name passwd 2>/dev/null 1>/mnt/find.out.1

[student@desktop Desktop]$ cat /mnt/find.out.1

/etc/passwd

/etc/pam.d/passwd

第四单元作业