Trap vs rescue for handling ctrl-C during script execution.

rescue.rb

# Using a block allows you to limit the scope of the Interrupt handling code,
# as well as providing the opportunity to provide a meaningful exit code. For
# more information on exit codes, see: http://tldp.org/LDP/abs/html/exitcodes.html
begin
  sleep 10
rescue Interrupt
  $stderr.puts "Stopped sleeping..."
  exit 130
end

trap.rb

# Calling Signal.trap will trap the specified signal now and forever! This
# means that if the code is required or loaded elsewhere, the signal will
# still be trapped and the message printed.
Signal.trap('INT') { $stderr.puts "Stopped sleeping..." }
sleep 10