windows - How to detect if CMD is running as Administrator/has elevated privileges?

Question

From inside a batch file, I would like to test whether I'm running with Administrator/elevated privileges.

The username doesn't change when "Run as Administrator" is selected, so that doesn't work.

If there were a universally available command, which has no effect, but requires administrative privileges, then I could run that and check for an error code in order to test for privileges. So far, I haven't found such a command. The commands I have found seem to return a single, non-specific error code, which could indicate anything, and they're prone to failure for a variety of reasons.

I only care about Windows 7, though support of earlier operating systems would be nice.

Answer 1

This trick only requires one command: type net session into the command prompt.

If you are NOT an admin, you get an access is denied message.

System error 5 has occurred.

Access is denied.

If you ARE an admin, you get a different message, the most common being:

There are no entries in the list.

From MS Technet:

Used without parameters, net session displays information about all sessions with the local computer.