I don’t know how to do this, but since noone else has told you what you need to do, I hope this pointer helps anyway: what you need is to find the controlling terminal and write to/read from it to prompt the user.

Makeshifts last the longest.

In reply to Re: No interactivity (prompt) after reading from pipe by Aristotle
in thread No interactivity (prompt) after reading from pipe by svenXY

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