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From: Greg Wooledge <wooledg@eeg.ccf.org>
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Subject: Re: CTRL-C on command line does not cancel current command
Date: Fri, 8 May 2020 17:35:59 -0400
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On Fri, May 08, 2020 at 02:26:34PM -0700, Paul Kelaita wrote:
> Only seeing this on Alpine BusyBox (iSH) on iOS 13.x with either 5.0.11 or 5.0.17

Busybox is a shell, in addition to being other tools.  Perhaps you're
not even in bash at all?

What does "ps -p $$" say?  How about "set | grep BASH"?

If it turns out that you really are in bash, not in busybox, then we'd
need to know a bit more about your environment.  What kind of terminal
emulator are you in?  What does "stty -a" say?  Have you configured
readline (look for /etc/inputrc and ~/.inputrc files) in some nonstandard
way?