Holger Just questions

Holger Just answers

• Where is the Rails app log on ubuntu server (nginx+passenger+capistrano)?
• Ruby: Combine two similar methods into one?
• How to tell Chef to take an action if the desired package to install doesn't exist?
• Rake error running task: "undefined method 'Task' for main:Object rake 0.9.2.2
• in `decode64': undefined method `unpack1' for nil:NilClass (NoMethodError)
• Is there an elegant one liner to append scopes stored in an array using .send()?
• Kernel.pp raises NoMethodError in Ruby
• How to install ruby gem without sudo?
• Why does the `next` method in Ruby raises SyntaxError while `next!` or `self.next` don't while monkey patching the String class?
• What is the pre-Ruby2.3 equivalent to the safe navigation operator (&. or "ampersand-dot")?