The "test-prompt-password" command:

Usage: fossil test-prompt-password PROMPT VERIFY

Prompts the user for a password and then prints it verbatim.

Behavior is controlled by the VERIFY parameter:

    0     Just ask once.

    1     If the first answer is a non-empty string, ask for
          verification.  Repeat if the two strings do not match.

    2     Ask twice, repeat if the strings do not match.