4 ms·

Thanks for pointing this quirk/difference out! I'll keep it in mind. Regarding the expected behaviour: I believe this is largely a matter of preference/philoso

Thanks for pointing this quirk/difference out! I'll keep it in mind. Regarding the expected behaviour: I believe this is largely a matter of preference/philosophy. 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. Reasoning: For automated tasks or people not familiar with Linux/my script, the disk should not be filled up with old garbage data. And for debugging, I usually add a '-d/--debug' option to have more verbose output and disable the cleanup on Ctrl+C (but still cleanup on normal exit). But as I said, I don't believe there is the one true way. So except for pointing out that I had to ensure external cleanup in case the script was run by some auomated tasks in a permanent environment (read: native), I wouldn't seriously complain if I ever used one of your scripts :)

arp242 3y ago
> 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).

4 ms·

Thanks for pointing this quirk/difference out! I'll keep it in mind. Regarding the expected behaviour: I believe this is largely a matter of preference/philoso

by archi42 3y ago

arp242 3y ago
> 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).