W, who, WhoAmI, who am I command

Command function: Display information of logged-in user

Command format:

Common options:

Example:

W shows the logged in user and the operation in progress

[Email protected] ~]# W

11:22:01 up 4 days, 21:22, 3 users, Load average:0.00, 0.00, 0.00

USER TTY from [email protected] IDLE jcpu PCPU

Root tty1-thu14 4days 0.19s 0.19s-bash

Root pts/0 172.31.3.32 Thu14 0.00s 0.73s 0.00s W

Root pts/1 172.31.3.32 11:18 1:50 0.07s 0.02s-bash

Who shows the logged in username, terminal name, logon time, and login IP

[email protected] ~]# who

Root Tty1 2015-11-12 14:00

Root pts/0 2015-11-12 14:03 (172.31.3.32)

Root PTS/1 2015-11-17 11:18 (172.31.3.32)

WHOAMI Displays the user name of the current user

[Email protected] ~]$ WhoAmI

Zzd

Who am I displays the user name when logging on to the system, even if the user has switched to other users

Results with Who-m

[Email protected] ~]$ WhoAmI

Zzd

[email protected] ~]$ who am I

Root PTS/1 2015-11-17 11:18 (172.31.3.32)

[Email protected] ~]$ who-m

Root PTS/1 2015-11-17 11:18 (172.31.3.32)

W, who, WhoAmI, who am I command