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lang-bash
mapfileis a new one to me also. Kudos.while IFS= readversion works back in bash v3 (which is important for those of us using macOS).find -print0variant; grumble for putting it after a known-incorrect version, and describing it only for use if one knows that they need to handle newlines. If one only handles the unexpected in places where it's expected, one will never be handling the unexpected at all.