script

#!/bin/sh
=begin 2>/dev/null
exec ${RUBY_BIN:-ruby} -e"\$0='$0'; load '$0'" -- $@
=end

#!/usr/bin/env ruby
puts 123

# Examples:
# 
# Just run the script:
#   $ ./script
#   $ sh script
# 
# Run the script with a specific interpreter:
#   $ ruby script
#   $ jruby script
# 
# Always run the script with a specific interpreter (set this in your .bashrc):
#   $ export RUBY_BIN=/usr/bin/ruby
#   $ ./script
#   $ ./script