How to define HTTP_PROXY uppercase as http_proxy lowercase in macos? How to define HTTP_PROXY uppercase as http_proxy lowercase in macos? Is there a way to set HTTP_PROXY to work similarly as http_proxy?

Not really; they're different environment variables. You can set one to be an at-the-instant copy of the other:


export HTTP_PROXY=$http_proxy


but if `$http_proxy` later changes you won't get the same change in `$HTTP_PROXY` unless you perform the assignment once more.