Differences between linux who am I and whoami

Differences between linux who am I and whoami

Who am I displays the actual user name, that is, the user ID when the user logs on. This command is equivalent to who-m.

Whoami displays the valid user ID, the user name of the current "Operation user.

In most cases, the actual user ID is the same as the valid user ID.

Who-q is used to display the number of currently logged-on users.

If you think the output information of who is obscure, you can use who-H to output the information, so that you can add the column name to each column for reading.

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