Bash’s posix mode still has a lot of bashisms. The only way to test true posix compliance is to test with other shells like dash and ash.
I have found this is the case a lot of time. People will say it’s POSIX compliant shell, but it’ll obviously only be tested in bash Like at that point just make it a bash script, since pretty much every system under the sun has it.
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bash is veeery old and it implements all of posix.
I was thinking about bash scripts that use bash specific builtins. Some of those require >= x version.
even <<< is like 10 years old
Yeah. The only language I didn’t have the right version for in the past was python. I just wanted to make a joke about standards vs implementations.
Bash’s posix mode still has a lot of bashisms. The only way to test true posix compliance is to test with other shells like
dashandash. I have found this is the case a lot of time. People will say it’s POSIX compliant shell, but it’ll obviously only be tested in bash Like at that point just make it a bash script, since pretty much every system under the sun has it.Oh hey, it really does!
there is always shellcheck it points them out to you