1、查看在线用户 w
[qiao@qiao-linux ~]$ w
15:32:44 up 2:52, 1 user, load average: 6.75, 3.98, 2.55
USER TTY LOGIN@ IDLE JCPU PCPU WHAT
qiao tty2 15:24 2:51m 0.03s 0.03s /usr/libexec/gnome-session-binary
2.查看用户登录历史 last
[qiao@qiao-linux ~]$ last
qiao tty2 tty2 Mon Jun 8 15:24 still logged in
qiao tty2 tty2 Mon Jun 8 15:21 - 15:23 (00:02)
qiao tty2 tty2 Mon Jun 8 12:41 - 15:21 (02:39)
reboot system boot 5.6.15-300.fc32. Mon Jun 8 20:40 still running
qiao tty2 tty2 Sun Jun 7 22:22 - down (09:57)
reboot system boot 5.6.15-300.fc32. Mon Jun 8 06:21 - 08:19 (01:58)
qiao pts/0 q Sun Jun 7 22:07 - down (00:13)
qiao pts/1 q Sun Jun 7 22:02 - down (00:19)
qiao tty2 tty2 Sun Jun 7 21:19 - down (01:01)
reboot system boot 5.6.15-300.fc32. Mon Jun 8 05:13 - 22:21 (-6:52)
qiao tty2 tty2 Sun Jun 7 20:47 - down (00:06)
reboot system boot 5.6.15-300.fc32. Mon Jun 8 04:46 - 20:53 (-7:52)
qiao tty2 tty2 Sun Jun 7 16:51 - crash (11:54)
reboot system boot 5.6.15-300.fc32. Mon Jun 8 00:50 - 20:53 (-3:56)
qiao tty2 tty2 Sun Jun 7 12:59 - down (03:50)
qiao tty2 tty2 Sun Jun 7 12:40 - 12:59 (00:18)
reboot system boot 5.6.15-300.fc32. Sun Jun 7 20:00 - 16:50 (-3:10)
qiao tty2 tty2 Sun Jun 7 11:16 - down (00:43)
reboot system boot 5.6.15-300.fc32. Sun Jun 7 19:15 - 11:59 (-7:15)
qiao tty2 tty2 Sun Jun 7 11:11 - down (00:03)
reboot system boot 5.6.15-300.fc32. Sun Jun 7 19:10 - 11:15 (-7:55)
qiao tty2 tty2 Sun Jun 7 10:47 - down (00:23)
reboot system boot 5.6.15-300.fc32. Sun Jun 7 17:51 - 11:10 (-6:40)
qiao tty2 tty2 Sun Jun 7 09:19 - down (00:02)
reboot system boot 5.6.15-300.fc32. Sun Jun 7 17:18 - 09:21 (-7:56)
qiao tty2 tty2 Sun Jun 7 09:03 - down (00:14)
reboot system boot 5.6.15-300.fc32. Sun Jun 7 17:02 - 09:17 (-7:44)
qiao tty2 tty2 Sun Jun 7 08:51 - down (00:10)
qiao tty2 tty2 Sun Jun 7 07:53 - 08:51 (00:57)
qiao tty2 tty2 Sat Jun 6 22:01 - 07:53 (09:51)
reboot system boot 5.6.15-300.fc32. Sun Jun 7 06:00 - 09:01 (03:01)
qiao tty2 tty2 Sat Jun 6 21:48 - down (00:11)
qiao tty2 tty2 Sat Jun 6 19:25 - 21:48 (02:22)
qiao tty2 tty2 Sat Jun 6 19:06 - 19:25 (00:18)
qiao tty2 tty2 Sat Jun 6 17:40 - 19:06 (01:25)
qiao tty2 tty2 Sat Jun 6 17:38 - 17:40 (00:01)
qiao tty2 tty2 Sat Jun 6 16:07 - 17:37 (01:30)
reboot system boot 5.6.15-300.fc32. Sun Jun 7 00:06 - 22:00 (-2:06)
qiao tty2 tty2 Sat Jun 6 15:56 - down (00:08)
reboot system boot 5.6.15-300.fc32. Sat Jun 6 23:55 - 16:05 (-7:50)
qiao tty2 tty2 Sat Jun 6 14:59 - down (00:55)
qiao tty2 tty2 Sat Jun 6 14:58 - 14:59 (00:01)
reboot system boot 5.6.6-300.fc32.x Sat Jun 6 22:54 - 15:55 (-6:58)
wtmp begins Sat Jun 6 22:54:02 2020
3.踢出用户
pkill -KILL -t pts/0 #pts/0为w指令看到的用户终端号
来源：oschina
链接：https://my.oschina.net/mrq/blog/4304089