Simple script to test/demo simple signal handling in bash

signal_trap_test.sh

#!/bin/bash

function sigusr1 {
	echo "Received SIGUSR1."
	STOP_EXECUTION=1
	echo "Stopping execution after current item"
}

trap 'sigusr1' USR1

STOP_EXECUTION=0

while ((!STOP_EXECUTION)); do
	echo "Running..."
	sleep 5
done