whoami who w last latlog

[root@localhost ~]# whoami
root
[root@localhost ~]# w
 21:22:19 up 20 min,  3 users,  load average: 0.00, 0.01, 0.01
USER     TTY      FROM             LOGIN@   IDLE   JCPU   PCPU WHAT
root     pts/0    192.168.0.107    21:12    9:55   0.01s  0.01s -bash
root     pts/1    192.168.0.105    21:18    3:31   0.01s  0.01s -bash
root     pts/2    192.168.0.105    21:19    3.00s  0.02s  0.00s w
[root@localhost ~]# who
root     pts/0        2025-01-09 21:12 (192.168.0.107)
root     pts/1        2025-01-09 21:18 (192.168.0.105)
root     pts/2        2025-01-09 21:19 (192.168.0.105)
[root@localhost ~]# last
root     pts/2        192.168.0.105    Thu Jan  9 21:19   still logged in
root     pts/1        192.168.0.105    Thu Jan  9 21:18   still logged in
root     pts/0        192.168.0.107    Thu Jan  9 21:12   still logged in
reboot   system boot  3.10.0-1160.el7. Thu Jan  9 09:02 - 21:22  (12:20)
root     pts/0        192.168.0.105    Thu Jan  9 08:29 - crash  (00:33)
reboot   system boot  3.10.0-1160.el7. Wed Jan  8 20:28 - 21:22 (1+00:54)
root     pts/0        192.168.0.105    Wed Jan  8 21:43 - crash  (-1:-14)
reboot   system boot  3.10.0-1160.el7. Wed Jan  8 09:43 - 21:22 (1+11:39)
root     pts/0        192.168.0.105    Wed Jan  8 08:34 - crash  (01:09)
reboot   system boot  3.10.0-1160.el7. Tue Jan  7 20:32 - 21:22 (2+00:50)
root     pts/0        192.168.0.105    Tue Jan  7 21:37 - crash  (-1:-4)
reboot   system boot  3.10.0-1160.el7. Tue Jan  7 09:36 - 21:22 (2+11:46)
root     pts/0        192.168.0.105    Tue Jan  7 21:12 - crash  (-11:-36)
reboot   system boot  3.10.0-1160.el7. Tue Jan  7 09:12 - 21:22 (2+12:10)
root     pts/0        192.168.0.105    Tue Jan  7 08:48 - crash  (00:24)
reboot   system boot  3.10.0-1160.el7. Mon Jan  6 20:47 - 21:22 (3+00:35)
root     pts/1        192.168.0.105    Mon Jan  6 21:18 - crash  (00:-30)
root     pts/0        192.168.0.105    Mon Jan  6 20:50 - crash  (00:-3)
reboot   system boot  3.10.0-1160.el7. Mon Jan  6 08:44 - 21:22 (3+12:38)
[root@localhost ~]# lastlog
Username         Port     From             Latest
root             pts/2    192.168.0.105    Thu Jan  9 21:19:35 +0800 2025
bin                                        **Never logged in**
daemon                                     **Never logged in**
adm                                        **Never logged in**
lp                                         **Never logged in**
sync                                       **Never logged in**
shutdown                                   **Never logged in**
halt                                       **Never logged in**
mail                                       **Never logged in**
operator                                   **Never logged in**
games                                      **Never logged in**
ftp                                        **Never logged in**
nobody                                     **Never logged in**
systemd-network                            **Never logged in**
dbus                                       **Never logged in**
polkitd                                    **Never logged in**
tss                                        **Never logged in**
abrt                                       **Never logged in**
sshd                                       **Never logged in**
postfix                                    **Never logged in**
miaojiang        pts/0                     Thu Jan  9 09:00:43 +0800 2025
yu               pts/0                     Thu Jan  9 09:00:32 +0800 2025