whoami

Display details about the current user. More information: https://learn.microsoft.com/windows-server/administration/windows-commands/whoami.

Display the username of the current user:

whoami

Display the groups that the current user is a member of:

whoami /groups

Display the privileges of the current user:

whoami /priv

Display the user principal name (UPN) of the current user:

whoami /upn

Display the logon ID of the current user:

whoami /logonid

Display all information for the current user:

whoami /all