################ this is one file, which would be /etc/init.d/rc ########################
#!/bin/bash                                                                                 

on_exit() {
    echo "error: catched a sigint."
    exit 1;
}

trap on_exit SIGINT

. ./test


############# and this is the one that simulates a process which doesn't want to start at boot time
#!/bin/bash

while : ; do sleep 1; done