Ruby on Rails
ShebangChangeScripts

Here are some command-line scripts to modify all the necessary files at once.

• To change to /usr/bin/env ruby:
  

  ruby -i -pe 'gsub!("#!/usr/local/bin/ruby", "#!/usr/bin/env ruby")' public/dispatch.* script/*

• To change to /usr/bin/ruby18:
  

  ruby -i -pe 'gsub!("#!/usr/local/bin/ruby", "#!/usr/bin/ruby18")' public/dispatch.* script/*

• To change to c:/ruby/bin/ruby:
  

  ruby -i.bak -pe 'gsub!("#!/usr/local/bin/ruby", "#!c:/ruby/bin/ruby")' public/dispatch.* script/*