This is info about configuring your system so that the delete  key  will
erase  characters.  Different editors may need something different here.
This is what I've found helpls with the vi clones.  It doesn't  seem  to
matter which shell you're using.

There's a discussion of it (dated 2013-1-8, works 2022-1-15) at:
	https://unix.stackexchange.com/questions/60627/vim-how-to-configure-backspace-and-delete-keys-both-as-normal

The best advice seems to be in answer 3:
	stty erase ^?
where the "^?" is a Ctrl-V followed by the Delete key.

(So far, I haven't really found a coherent explanation for why  this  is
such  a  problem.  Mostly all you can find is various "magic wands" like
the above, telling you to type something nonsensical,  which  worked  on
someone else's system.)