Rclone Mac installation instructions need updating for High Sierra

[ncw (Nick Craig-Wood)]

@DennyLi

It’s actually in homebrew-core, not a user tap. Homebrew is similar to apt or yum in the Linux world, so think of this as being in the Ubuntu main or universe repositories. Every homebrew user, which encompasses every techie using MacOS, can install rclone without adding additional repos (called “taps” in homebrew terminology).

To install homebrew, run the one-liner on https://brew.sh/, then “brew install rclone” will do the trick. After that, any time you run “brew upgrade” rclone will be upgraded alongside all your other brew packages.

Thank you - that is a very helpful high level overview of brew

I guess I probably need a section in the docs about installing rclone from 3rd party repositories, eg from brew and also for things like the rclone package in debian/ubuntu