I'm tracking down all the ways a key can be mapped to backward delete. I am currently reviewing several servers and a few of them the ^H does not preform its proper function. I thought it was just a simple matter of stty erase ^H, because on these machines stty erase is set to simply ^ , but then I noticed that a few machines where the backspace key properly functions stty erase is still only set to ^

Until today, I guess I never thought about the fact that on some servers shift+backspace and cntrl+backspace still preform a backward-delete even though they spit out ^? instead of ^H. I have one site where ^H ^? and ^ all preform a backwards delete

Which means that stty erase can't be the only method for setting a keymapping to backwards erase. So, I'm looking for information on anyway to map keys in a shell to backwards-delete