Linux WhoAmI, who directive

WhoAmI

Function Description:

Show user Name

Grammar:

WhoAmI

Additional notes:
Display its own user name, this directive is equivalent to executing the id-un instruction

The difference between WhoAmI and who am I

The WHO command is focused on seeing which users are currently logged on to this machine

The role of who-m and the role of Who am I is the same

Who am I displays the actual user's username, which is the user ID when the user logs in. This command is equivalent to Who-m

whoami Displays a valid user ID, which is the user name of the current operating user

Command Practice:

[[Email protected]~]$ whoami Display the current user name

Test

[email protected]~]$ who see which users are currently logged in to this machine

Root Tty1 2013-04-18 19:30

Test pts/0 2013-04-18 19:31 (10.0.0.131)

[[Email protected]~]$ who am I display the actual user's username, log in when the user ID

Test pts/0 2013-04-18 19:31 (10.0.0.131)

[[Email protected]~]$ who-m

Test pts/0 2013-04-18 19:31 (10.0.0.131)

Linux WhoAmI, who directive