That’s true, but I definitely use fish as my default shell and when it runs a script without shebang it automatically runs it with bash. Thus I assume that’s the fish default to make your scripts work.
Being more POSIX-compatible by further breaking POSIX spec is an ok choice to make in this case imo, but I think that’s a somewhat important detail to know :)
Why would sometimes scripts not work? All scripts are executed with bash by default.
No, they are executed according to the shebang on the first line, which is usually bash. If it is missing, it will default to the current shell.
what kind of monster writes a script without a shebang?
That’s true, but I definitely use fish as my default shell and when it runs a script without shebang it automatically runs it with bash. Thus I assume that’s the fish default to make your scripts work.
Being more POSIX-compatible by further breaking POSIX spec is an ok choice to make in this case imo, but I think that’s a somewhat important detail to know :)