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This is an interesting scenario and I'm relatively new in writing shell scripts. I have a case where I want the user to enter a password at a prompt. That works fine.

The PROBLEM is if the user should Ctrl-C exit at that point. Because the password prompt turns off text entry to the terminal, if the users exits there, text entry to the terminal is still turned off, leaving a frustrated user.

In PHP programming we have a register_shutdown_function() which will be called on exit, regardless of where or when that happens in the program. Is there an equivalent in Bash for the Ctrl-C command?

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  • Are you using read -s or are you turning echo off/on yourself? Commented Apr 11, 2021 at 20:08
  • "/usr/bin/env bash -c 'read -s -p \"" . addslashes($prompt) . "\" mypassword && echo \$mypassword'" Commented Apr 11, 2021 at 20:22
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    Please put it into your question, where you can format it more easily with {}. It's also better there because everyone can quickly find it as part of your question Commented Apr 11, 2021 at 20:39

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Yes, bash has the trap builtin.

trap 'stty echo'  EXIT

Documented in man bash.

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