title: Fitnesse - How to define a wiki or slim variable from an environment variable or file?
body: <p>I have a password token (that changes every few minutes) that I need to pass to my SLIM tests.
  I can store this token in either a text file or environment variable. But once I have that password saved, I need to get my test cases to see the value. So is it possible to get a value from an environment variable or a file into a fitnesse test case?</p>