> I have previously used trap handlers in bash scripts explicitly so that the cleanup is run in every case and /tmp is not polluted - even of failures That's p

> I have previously used trap handlers in bash scripts explicitly so that the cleanup is run in every case and /tmp is not polluted - even of failures That's perfectly fine – even desirable – behaviour for a whole bunch of use cases. The thing is you can opt-in to that trivially with "trap EXIT INT TERM ABRT", whereas the reverse is harder and much less obvious, so it seems like a better design to me (although a "trap ALWAYS" shortcut would be even better so you don't need to list signals). At this point it's difficult to change due to compatibility as people's bash scripts would break in subtle ways, but it's one of my many annoyances with bash (my view is that people really ought to ditch bash in favour of a better shell – zsh being the most obvious incremental improvement, though far from the only option – but this always proves to be a controversial opinion).