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I accidentally hit the insert key so often that I put some code in my .emacs to disable the overwrite-mode key binding:

(define-key global-map [(insert)] nil)
(define-key global-map [(control insert)] 'overwrite-mode)

This works fine when using emacs within X. However, when I run emacs in the terminal (with -nw or over ssh), insert still turns on overwrite mode.

How can I bind insert in a terminal?

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Turns out that I needed to redefine the key binding for insertchar as opposed to just insert. This means adding

(define-key global-map [(insertchar)] nil)

to .emacs.

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    Note also that C-h k <insert> in a terminal would give you the key description <insertchar> and therefore you could use (kbd "<insertchar>") in your define-key call. C-h k always gives you a key sequence string that you can plug into kbd. – phils Mar 18 '18 at 23:53

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