This post originated from an RSS feed registered with Ruby Buzz by Jonathan Weiss. Original Post: Rescue exit Feed Title: BlogFish Feed URL: http://blog.innerewut.de/feed/atom.xml Feed Description: Weblog by Jonathan Weiss about Unix, BSD, security, Programming in Ruby, Ruby on Rails and Agile Development. Latest Ruby Buzz Posts Latest Ruby Buzz Posts by Jonathan Weiss Latest Posts From BlogFish

While debugging an unrelated problem in Nanite I've stumbled over this feature in Ruby:

You can rescue the call to Kernel.exit.

Calling exit will just raise a SystemExit exception that can catched as any other.

#!/usr/bin/env ruby

begin
  exit
rescue SystemExit => e
  puts "somebody wanted to #{e}"
end

puts "after exiting"

This is clearly documented in the RDoc but still I was surprised.