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Stop bashing on bash.

It has limitations, and quoting takes a hot minute to grok, but those don't come into play for a surprising amount of medium-large projects when used properly.

I use POSIX sh only and get by with maintainability and handling failure modes just fine.

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Bash is great for cases where you are gluing together a bunch of other commands. But it also has a lot of pitfalls, that something as large and complex as this will absolutely run into (to be fair, so does c).

As a specific example, the ACME protocol requires working with json. Doing this in bash is very difficult and error prone, especially if you want to avoid a dependency on something like jq, as this does.

ShellCheck and unofficial strict mode make bash a pretty nice language.

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