ksh - map Ctrl-D to exit shell

Question

I would like to know how we can map the keys Ctrl-D in ksh to exit the shell as it does in bash shell.

Not much familiar with key binding in ksh.

Edit

My comments are after the <!-- string below.

$ echo $0
bash
$ exit    <--- I pressed Ctrl-D here, 'exit' string was placed and the shell exited

$> echo $0
ksh
$> Use `exit' to leave ksh  <!-- I pressed Ctrl-D here, Got this message and returned to the ksh prompt
$> echo $0
ksh
$> cat >> somefile
Some text
$>   <!-- I pressed Ctrl-D here. So this key combination is taken as eof char for file, but not for exit.

So, it's needs Ctrl-D to be mapped to exit the shell? How do I do that?

Answer 1

You want the stty command: see how ^D is mapped with stty -a. You can change that to something else with stty eof char: Remove the "eof" setting with stty eof undef

---

Untested: you want to read about the trap command in the ksh man page. It might be sufficient for you to set up a handler for the EXIT signal.

# warning: completely untested
exit_handler() { echo "exit"; exit; }
trap exit_handler EXIT