title: How to get the actual current user in Cygwin when "run as administrator"?
body: <p>Basically the cygwin CLI (or bash in particular, if that helps) equivalent of <a href="https://stackoverflow.com/questions/28672303/c-getusername-when-process-is-run-as-administrator">this question</a>.  I want to start cygwin as administrator, but then get my name, not the administrator's name, somehow.  (All the environment variables like $USER, $USERNAME, etc. get set to the administrator.)</p>
  
  <p>This could include any utility that comes with Windows, but it has to come with all editions, not just Pro.</p>