#!/bin/bash

ctrlc_count=0

function no_ctrlc()
{
  let ctrlc_count++
  echo
  if [[ $ctrlc_count == 1 ]]; then
    echo "Stop that."
  elif [[ $ctrlc_count == 2 ]]; then
    echo "Once more and I quit."
  else
    echo "That's it.  I quit."
    exit
  fi
}

trap no_ctrlc SIGINT

while true
do
  echo Sleeping
  sleep 10
done
