- whoami: 显示当前登录有效用户
- who: 系统当前所有的登录会话
- w: 系统当前所有的登录会话及所做的操作
[root@sre01 ~]# whoami
root
[root@sre01 ~]# who
root pts/0 2024-10-18 16:46 (172.16.0.1)
上次系统启动的时间
[root@sre01 ~]# who -b
system boot 2024-10-11 10:19
[root@sre01 ~]# w
22:04:01 up 13:05, 1 user, load average: 0.01, 0.02, 0.05
USER TTY FROM LOGIN@ IDLE JCPU PCPU WHAT
root pts/0 172.16.0.1 16:46 ? 0.07s 0.02s w
查看特定用户
[root@sre01 ~]# w root
22:10:04 up 13:11, 1 user, load average: 0.00, 0.01, 0.05
USER TTY FROM LOGIN@ IDLE JCPU PCPU WHAT
root pts/0 172.16.0.1 16:46 ? 0.06s 0.00s w root