Get SID of user

In Windows environment, each user is assigned a unique identifier called Security ID or SID, which is used to control access to various resources like Files, Registry keys, network shares etc. We can obtain SID of a user through WMIC USERACCOUNT command. Below you can find syntax and examples for the same.
Get SID of a local user

wmic useraccount where name='username' get sid

For example, to get the SID for a local user with the login name  ‘John’, the command would be as below

wmic useraccount where name='John' get sid

Get SID for current logged in user
To retrieve the SID for current logged in user we can run the below command. This does not require you to specify the user name in the command. This can be used in batch files which may be executed from different user accounts.

wmic useraccount where name='%username%' get sid

Get SID for current logged in domain user
Run the command ‘whoami /user’ from command line to get the SID for the logged in user.
Example:

c:\>whoami /user
USER INFORMATION
----------------
User Name      SID
============== ==============================================
mydomain\wincmd S-1-5-21-7375663-6890924511-1272660413-2944159
c:\>

Get SID for the local administrator of the computer

wmic useraccount where (name='administrator' and domain='%computername%') get name,sid

Get SID for the domain administrator

wmic useraccount where (name='administrator' and domain='%userdomain%') get name,sid