To install Haskell, if you are running Linux, macOS, FreeBSD or Windows Subsystem for Linux, run the following
          in your terminal (as a user other than root), then follow the onscreen instructions.
		  curl --proto '=https' --tlsv1.2 -sSf https://get-ghcup.haskell.org | sh
          If you don't like curl | sh, see other installation methods.