Shell Programming and Scripting

Tried to add a function to my control_c interrupt here. It works but has one little bug. If the user selects to run the function instead of exiting, the program restarts itself without forking as it should. However, after that control_c no longer works again. I wanted to allow the user to run this function at anytime by pressing a button, so just running one time won't cut it. I searched Google and the Bash man page on 'exec' but couldn't find anything on this problem. Any advice much appreciated.

Code:

control_c()
{
   echo -e "Would you like to run this function?\n"
   echo -e "Enter y or n: "
   read ans

    if [ "$ans" == "y" ]; then

               # Do function here
               sleep 2
               exec bash test.sh
               exit 0
    else
               exit 0
    fi
}

trap control_c SIGINT

Got it. I used exec because it prevented the script from forking. However, I learned that this causes the shell to become interactive. If anyone knows how to do this another way, without forking the process, let me know. For now I'm satisfied.