From: Quintus Date: 2011-01-28T03:05:43+09:00 Subject: Re: which Ruby is in use? Am 27.01.2011 18:14, schrieb Hassan Schroeder: > How can I tell from within a running program which interpreter is being > used -- i.e. MRI, REE, etc.? > > RUBY_VERSION only returns a number, .e.g. "1.8.7". > > TIA, The RUBY_ENGINE constant should define this, but I'm not sure wheather it's already in 1.8. Vale, Marvin