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And yet ... https://unix.stackexchange.com/questions/50058/what-is-the-point-of-the-cd-external-command https://unix.stackexchange.com/questions/50058/what-is-

• version_five 4y ago
  The question and highest rated reply there are very interesting and worth reading (at least for trivia value), thanks for that. I don't understand what you meant is idiotic though
  • ianai 4y ago
    As that comment said, it’s there so utilities can use it for checking the return of “chdir()”. It’s at best a name conflict with a shell command with a well established past and use. At worst, it probably enables some bad code smells or outright malicious code.
  • emmelaich 4y ago
    I've seen questions about sudo (for instance) that ask why does "sudo chdir" not work. By idiotic I think it's a mistake to blur the line between shell builtins and external commands.