On Sun, Dec 29, 2024, at 3:54 PM, Daniel Colascione wrote: > Are you really indifferent as to whether array indexes should be > evaluated once or twice? Have you seen > https://yossarian.net/til/post/some-surprising-code-execution-sources-in-bash/?
I'm aware of the pitfalls described therein, and more. I don't think anyone thinks multiple evaluation in indexes is good per se, but many find the side effects of the attempted cures worse than the disease (e.g., https://mywiki.wooledge.org/BashPitfalls#pf62). > Bash has some unfortunate unfixable defaults avoidable if you know how. > Don't you think it should be easier to avoid them? I have a hard time > seeing how anyone would choose some of these old behaviors on purpose. Providing a metaoption would falsely imply that the bash project officially endorses the chosen settings as Best Practice (TM). You think they are, but plenty of people disagree, mostly due to collateral damage that "modern bash" advocates don't seem to know or care about. For example, regarding "set -euo pipefail" alone: https://mywiki.wooledge.org/BashPitfalls#pf60 https://mywiki.wooledge.org/BashFAQ/105 https://mywiki.wooledge.org/BashFAQ/112 Believe it or not, this topic is controversial, and I don't think the shell itself ought to take a position on it. (Even if it did, the ensuing discussion about which settings to bless would itself be interminable.) It's trivial to collect your preferred settings in one file and source it from your scripts. -- vq
