# finger命令所顯示的用戶信息主要來自/etc/passwd文件中的第1、第5、第6和第7個字段[dag@dog ~]$ finger dog
Login: dag Name: dad dog
Directory: /home/dag Shell: /bin/bash
On since 一 6月 1 21:58 (EDT) on tty1 from :0
1 day 2 hours idle
On since 一 6月 1 21:59 (EDT) on pts/0 from :0.0
1 day idle
On since 一 6月 1 22:04 (EDT) on pts/1 from :0.0
No mail.
No Plan.
[dag@dog ~]$ tail /etc/passwd
haldaemon:x:68:68:HAL daemon:/:/sbin/nologin
gdm:x:42:42::/var/lib/gdm:/sbin/nologin
pulse:x:497:495:PulseAudio System Daemon:/var/run/pulse:/sbin/nologin
oprofile:x:16:16:Special user account to be used by OProfile:/home/oprofile:/sbin/nologin
sshd:x:74:74:Privilege-separated SSH:/var/empty/sshd:/sbin/nologin
tcpdump:x:72:72::/:/sbin/nologin
dag:x:500:500:dad dog:/home/dag:/bin/bash
cat:x:501:501::/home/cat:/bin/bash
fox:x:502:502::/home/fox:/bin/bash
pig:x:503:503::/home/pig:/bin/bash