this post was submitted on 27 Jul 2023
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[–] [email protected] 41 points 1 year ago (2 children)

bash is veeery old and it implements all of posix.

[–] [email protected] 22 points 1 year ago (2 children)

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.

[–] [email protected] 5 points 1 year ago

there is always shellcheck it points them out to you

[–] [email protected] 4 points 1 year ago (1 children)

I was thinking about bash scripts that use bash specific builtins. Some of those require >= x version.

[–] [email protected] 6 points 1 year ago (1 children)

even <<< is like 10 years old

[–] [email protected] 6 points 1 year ago

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.