找特定屬性的檔案

1. 找目錄 /usr/local 中屬性是 644 的檔案。

   [root@kvm8 ~]# find /usr/local/ -perm 644
   /usr/local/bin/garmin
   [root@kvm8 ~]# ll /usr/local/bin/garmin
   -rw-r--r--. 1 deyu8 deyu8 11 Dec 25  2020 /usr/local/bin/garmin
   

2. 找目錄 /usr/local 中屬性包含 644 的檔案。

   [root@kvm8 ~]# find /usr/local/ -perm -644
   /usr/local/
   /usr/local/lib64
   /usr/local/bin
   /usr/local/bin/garmin
   /usr/local/src
   /usr/local/etc
   /usr/local/games
   /usr/local/libexec
   /usr/local/sbin
   /usr/local/include
   /usr/local/share
   /usr/local/share/info
   /usr/local/share/applications
   /usr/local/share/man
   /usr/local/share/man/man5
   /usr/local/share/man/man3
   /usr/local/share/man/man9
   /usr/local/share/man/man6x
   /usr/local/share/man/man3x
   /usr/local/share/man/man1x
   /usr/local/share/man/mann
   /usr/local/share/man/man2x
   /usr/local/share/man/man4x
   /usr/local/share/man/man9x
   /usr/local/share/man/man5x
   /usr/local/share/man/man6
   /usr/local/share/man/man8x
   /usr/local/share/man/man8
   /usr/local/share/man/man7x
   /usr/local/share/man/man2
   /usr/local/share/man/man4
   /usr/local/share/man/man7
   /usr/local/share/man/man1
   /usr/local/lib
   [root@kvm8 ~]# ll -d /usr/local/lib
   drwxr-xr-x. 2 root root 4096 May 11  2019 /usr/local/lib
   

3. 找目錄 /usr 中屬性包含 SETUID 的檔案。

   [root@kvm8 ~]# find /usr -perm -4000
   /usr/bin/passwd
   /usr/bin/sudo
   /usr/bin/pkexec
   /usr/bin/su
   /usr/bin/umount
   /usr/bin/newgrp
   /usr/bin/chage
   /usr/bin/mount
   /usr/bin/crontab
   /usr/bin/gpasswd
   /usr/libexec/dbus-1/dbus-daemon-launch-helper
   /usr/sbin/unix_chkpwd
   /usr/sbin/mount.nfs
   /usr/sbin/userhelper
   /usr/sbin/grub2-set-bootflag
   /usr/sbin/pam_timestamp_check
   /usr/lib/polkit-1/polkit-agent-helper-1
   [root@kvm8 ~]# ll /usr/bin/passwd
   -rwsr-xr-x. 1 root root 33600 Apr  7  2020 /usr/bin/passwd
   

4. 找目錄 /usr 中屬性包含 SETGID 的檔案。

   [root@kvm8 ~]# find /usr -perm -2000
   /usr/bin/write
   /usr/libexec/openssh/ssh-keysign
   /usr/libexec/utempter/utempter
   [root@kvm8 ~]# ll /usr/bin/write
   -rwxr-sr-x. 1 root tty 21344 Apr 24  2020 /usr/bin/write
   

5. 搜尋 Linux 系統中 SGID 目錄：

   [root@kvm8 ~]# find / -perm -2000 2>/dev/null
   /run/log/journal
   /run/log/journal/23dc31d09bc35ea4f7b3e127f22919fc
   /usr/bin/write
   /usr/libexec/openssh/ssh-keysign
   /usr/libexec/utempter/utempter
   /home/shared
   

6. 搜尋 Linux 系統中 SBIT 目錄：

   [root@kvm8 ~]# find / -perm -1000 2>/dev/null
   /sys/fs/bpf
   /dev/mqueue
   /dev/shm
   /tmp
   /tmp/systemd-private-922af849fd5e4d4285a98af342213321-httpd.service-CiR6sP/tmp
   /tmp/systemd-private-922af849fd5e4d4285a98af342213321-chronyd.service-EpvurN/tmp
   /var/tmp
   /var/tmp/systemd-private-922af849fd5e4d4285a98af342213321-chronyd.service-QwbDlW/tmp
   /var/tmp/systemd-private-922af849fd5e4d4285a98af342213321-httpd.service-Fvgsvc/tmp