On WhoAmI in Linux and who instruction _linux

WhoAmI

Function Description:

Show user Name

Grammar:

WhoAmI

Supplementary Note:

Display the user name of oneself, this instruction is equivalent to execute id-un instruction

The difference between WhoAmI and who am I

The WHO command focuses on viewing current users who are logged on to this machine

The role of WHO-M is the same as that of who am I

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 and is the user name of the current operation user

Command Practice:

[test@test~]$ whoami Display the current user name

Test

[test@test~]$ who to 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)

[Test@test~]$ Who am I displays the user name of the actual user, the user ID at the time of login

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

[Test@test~]$ who-m

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

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