I wrote about rsync in 2009 in a previous post when the OS X was Leopard (10.5).
Generally, I have been pleased with the performance of the version that ships with each successive OS X version. As of the writing of this post I am using El Capitan (OS 10.11.1) on my Mac Air 11″ and as usual the version of rsync works. Now I want to use the latest version to take advantage of better memory management and faster performance.
I want to leave the rsync (version 2.6.9) that ships with the OS in place so that if anything is dependent upon it things won’t break. I simply want to add the new version.
brew tap homebrew/dupes
brew install rsync
Then edit /private/etc/paths to put /usr/local/bin before /usr/bin
That is it. To run the older version of rsync the entire path must be explicitly stated.