#!/bin/bash

set -e

kill_foreground() {
    echo "Background script has finished. Killing foreground script."
    ps -C "test3.sh" -o "%p"| grep -v PID | xargs kill;
}

kill_background() {
    echo "Foreground script finished. Killing background script."
    kill 0;
}


trap "exit" INT TERM
trap "kill_background" EXIT

./test2.sh &

export PID1=$!
( tail -f --pid=$PID1 /dev/null; echo "kill test3.sh "; kill_foreground ) &

./test3.sh