From: Tadeusz Bochan Date: 2013-07-05T06:21:27+09:00 Subject: RUBYOPT -S RuntimeError I'm confused. On Windows7, Ruby 1.9.3 I do : ruby -S script.rb and it works correctly, and searches the PATH variable However, if I do : set RUBYOPT=-S ruby script.rb =>ruby: invalid switch in RUBYOPT: -S (RuntimeError) What am I missing ? -- Posted via http://www.ruby-forum.com/.