FitNesse. SuiteAcceptanceTests. SuiteSlimTests.
SlimSymbolDollarDollar [add child]
 Scenario Libraries

 Set Up: .FitNesse.SuiteAcceptanceTests.SuiteSlimTests.SetUp (edit)
$$ should prevent symbol expression and reduce to a single $.
So $$a should translate to $a.

script
$x= echo bob
check echo $$x $$x
check echo $$a $$a
check echo $$ $$