command line - Batch script: how to check for admin rights

How do I check if the current batch script has admin rights?

I know how to make it call itself with runas but not how to check for admin rights. The only solutions I've seen are crude hack jobs.

Answer

You could always do something like this

mkdir "%windir%\system32\test" 2>nul
if "%errorlevel%" == "0" (rmdir "%windir%\system32\test" & echo Is admin) else (echo Not an Admin)

Not the best of ways but works for me all the time.