title: How to handle signal for ctrl+n and ctrl+d?
body: <p>SIGINT is used to handle <kbd>Ctrl</kbd>+<kbd>c</kbd> but there is no signal for <kbd>Ctrl</kbd>+<kbd>n</kbd> and <kbd>Ctrl</kbd>+<kbd>d</kbd>, how can I handle these? Any idea?</p>
  
  <p>I have a link list in my program and I have to perform some link list operations in these signal handlers. I just want to detect <kbd>Ctrl</kbd>+<kbd>d</kbd> and <kbd>Ctrl</kbd>+<kbd>n</kbd> in the normal flow of program.</p>