List members of a Windows group using command line
To list users, use the net user command:
net user
Your output will look something like this:
User accounts for \\LOCALHOST
-------------------------------------------------------------------------------
joeuser administrator guest
The command completed successfully.
If you need a list of users in a specific group, the use net localgroup:
net localgroup Users
Your output will look something like this:
Alias name Users
Comment Users are prevented from making accidental or intentional system-wide changes and can run most applications
Members
-------------------------------------------------------------------------------
NT AUTHORITY\Authenticated Users
NT AUTHORITY\INTERACTIVE
The command completed successfully.
This is for local system users, not domain accounts. If you want to know the membership of the Administrators group, you would just supply that as a parameter: net localgroup Administrators.
WMIC USERACCOUNT LIST BRIEF is another way to list the users in Windows. I'm not sure of the differences between net and WMIC. You can find more information about WMIC at http://ss64.com/nt/wmic.html
This is what WMIC USERACCOUNT LIST BRIEF returns on my machine:
C:\Users\ehtesh\AppData\Local>WMIC USERACCOUNT LIST BRIEF
AccountType Caption Domain FullName Name SID
512 wordless\Administrator wordless Administrator S-1-5-21-3098939154-701116006-2681273294-500
512 wordless\ehtesh wordless ehtesh S-1-5-21-3098939154-701116006-2681273294-1001
512 wordless\Guest wordless Guest S-1-5-21-3098939154-701116006-2681273294-501
512 wordless\HomeGroupUser$ wordless HomeGroupUser$ HomeGroupUser$ S-1-5-21-3098939154-701116006-2681273294-1002
For more detailed information, you can call WMIC USERACCOUNT LIST FULL.
WMIC has information on a lot more about the system than just useraccounts. One example is Windows XP/Vista/7 Check Battery Charge from CMD?.