#!/bin/sh

# this function is called when Ctrl-C is sent

function trap_ctrlc ()

{

    # perform cleanup here

    echo "Ctrl-C caught...performing clean up"

    echo "Doing cleanup"

    # exit shell script with error code

    # if omitted, shell script will continue execution

    exit

}

# initialise trap to call trap_ctrlc function

# when signal  (SIGINT) is received

trap "trap_ctrlc" 

# your script goes here

echo "going to sleep"

sleep

echo "end of sleep"