> But shell must be the world's most ubiquitous scripting language. “Shell” isn’t a language. It’s a collection of languages. And not even a consistent one: -

> But shell must be the world's most ubiquitous scripting language. “Shell” isn’t a language. It’s a collection of languages. And not even a consistent one: - Most BSDs don’t ship Bash as part of base. They default to ksh - macOS does ship bash but an ancient version and defaults to Zsh - Some Linux distorts don’t ship sh, instead symlinking to dash or bash. - Windows doesn’t have any of the above as part of its base install.