Linux self-study journey-basic commands (last command of system traces)
Article Directory
Preface
1. In the previous section, we talked about the who command to view the information of the user who is logging in. If you haven't read it yet, you can click on the link below to view it: who command
2. In this section we describe a command last to view the information of all logged-in users in the system
Tip: The following is the content of this article
One, last command format
- Command name: last
- The full name of the command: show listing of last logged in users
- Location: /usr/bin/last
- Execution authority: all users
- Function description: View the information of all logged-in users in the system
命令格式
[root@ecs-FWxC8 ~]# last
Second, last use
[root@ecs-FWxC8 ~]# last <-直接敲last即可
（用户名）（终端） （来源IP地址） （登录时间） - （退出时间）
root pts/1 220.202.207.99 Sun Mar 28 12:43 still logged in
root pts/1 220.202.152.39 Fri Mar 26 08:30 - 11:42 (03:11)
root pts/2 220.202.207.99 Thu Mar 25 22:23 - 22:48 (00:24)
root pts/1 220.202.207.99 Thu Mar 25 22:04 - 00:34 (02:30)
root pts/2 220.202.152.80 Thu Mar 25 12:08 - 14:41 (02:32)
root pts/3 220.202.152.80 Thu Mar 25 11:11 - 12:08 (00:56)
jh pts/3 220.202.152.80 Thu Mar 25 09:58 - 10:59 (01:01)
jh pts/2 220.202.152.80 Thu Mar 25 08:35 - 11:25 (02:49)
root pts/1 220.202.152.80 Thu Mar 25 08:34 - 12:10 (03:35)
root pts/1 119.39.248.60 Wed Mar 24 14:28 - 17:34 (03:06)
root pts/1 119.39.248.60 Wed Mar 24 12:09 - 13:28 (01:19)
root pts/0 119.39.248.60 Wed Mar 24 11:16 - 12:00 (00:44)
root pts/0 119.39.248.60 Wed Mar 24 10:45 - 11:15 (00:30)
root pts/0 119.39.248.60 Wed Mar 24 10:31 - 10:45 (00:13)
（reboot系统重启信息记录）
reboot system boot 3.10.0-957.12.2. Wed Mar 24 10:31 - 12:47 (4+02:16)
root tty1 Wed Mar 25 12:31 - 12:33 (00:01)
reboot system boot 3.10.0-957.12.2. Wed Mar 25 12:30 - 12:33 (00:03)
root tty1 Wed Mar 25 11:43 - 11:44 (00:01)
root pts/0 149.129.112.39 Wed Mar 25 11:42 - down (00:02)
root pts/0 149.129.112.39 Wed Mar 25 11:42 - 11:42 (00:00)
root pts/0 149.129.112.39 Wed Mar 25 11:34 - 11:42 (00:07)
reboot system boot 3.10.0-957.12.2. Wed Mar 25 11:34 - 11:44 (00:10)
root pts/0 149.129.112.39 Wed Mar 25 11:30 - down (00:03)
reboot system boot 3.10.0-957.12.2. Wed Mar 25 11:29 - 11:33 (00:04)
root tty1 Wed Mar 25 10:50 - 11:28 (00:38)
reboot system boot 3.10.0-957.12.2. Wed Mar 25 10:49 - 11:29 (00:39)
root tty1 Wed Mar 25 10:37 - crash (00:12)
reboot system boot 3.10.0-957.12.2. Wed Mar 25 10:36 - 11:29 (00:52)
root tty1 Wed Mar 25 10:35 - crash (00:01)
reboot system boot 3.10.0-957.12.2. Wed Mar 25 10:23 - 11:29 (01:05)
root tty1 Wed May 30 10:54 - 10:54 (00:00)
reboot system boot 3.10.0-957.12.2. Wed May 30 10:51 - 10:55 (00:03)
root pts/0 192.168.1.13 Tue Jul 30 15:22 - down (00:01)
reboot system boot 3.10.0-957.12.2. Wed May 30 10:42 - 15:23 (426+04:41)
root pts/0 192.168.0.244 Wed May 30 09:30 - down (00:00)
reboot system boot 3.10.0-957.12.2. Wed May 30 09:30 - 09:31 (00:01)
root pts/0 192.168.0.244 Wed May 30 09:27 - down (00:00)
reboot system boot 3.10.0-957.12.2. Wed May 30 09:26 - 09:28 (00:01)
root pts/1 192.168.1.13 Tue Jul 30 14:01 - crash (-426+-4:-35
root pts/1 192.168.1.13 Tue Jul 30 14:01 - 14:01 (00:00)
root pts/0 192.168.0.244 Tue Jul 30 13:57 - crash (-426+-4:-30
reboot system boot 3.10.0-957.12.2. Wed May 30 09:19 - 09:28 (00:09)
root pts/1 192.168.1.13 Tue Jul 30 13:52 - 13:54 (00:01)
root pts/0 192.168.1.13 Wed May 30 09:08 - crash (00:10)
reboot system boot 3.10.0-957.12.2. Wed May 30 09:07 - 09:28 (00:20)
root tty1 Wed Jul 17 16:48 - 16:48 (00:00)
root tty1 Wed Jul 17 16:37 - 16:47 (00:09)
reboot system boot 3.10.0-957.12.2. Wed Jul 17 16:37 - 09:28 (-413+-7:-9)
root tty1 Mon Jun 10 15:16 - crash (37+01:21)
reboot system boot 3.10.0-957.12.2. Mon Jun 10 15:15 - 09:28 (-376+-5:-47
root tty1 Mon Jun 10 15:05 - crash (00:09)
reboot system boot 3.10.0-957.12.2. Mon Jun 10 15:05 - 09:28 (-376+-5:-37
root tty1 Mon Jun 10 15:00 - 15:05 (00:05)
reboot system boot 3.10.0-957.12.2. Mon Jun 10 14:59 - 15:05 (00:05)
root tty1 Mon Jun 10 14:31 - 14:53 (00:22)
reboot system boot 3.10.0-957.el7.x Mon Jun 10 14:31 - 14:53 (00:22)
root tty1 Mon Jun 10 14:28 - 14:30 (00:02)
reboot system boot 3.10.0-957.el7.x Mon Jun 10 14:27 - 14:53 (00:26)
wtmp begins Mon Jun 10 14:27:45 2019
to sum up
In this section, we introduced the last command, mainly to know that it can view the information of all logged-in users.
This is Jiehua, see you next time!