rubysignalsrescue

Ruby prevent default CTRL+C output ^C

I am catching signal with

rescue Interrupt => e

But it always prints:

^CShutting down!

Is there a way to prevent the default CTRL+C output:

^C

Any ideas?

Solution

  • Some terminals support stty -echoctl to disable echoing of control characters:

    `stty -echoctl`

begin
  loop do
    # ...
  end
rescue Interrupt => e
  puts 'shutting down'
end

    If the above doesn't work, you can disable all echoing by setting IO#echo= to false:

    require 'io/console'

STDIN.echo = false

begin
  loop do
    # ...
  end
rescue Interrupt => e
  puts 'shutting down'
end