In my book Extreme Privacy, 5th Edition, I offer a script which will conduct a KnockKnock scan and parse the results for any potential malicious files running on your macOS machine. KnockKnock installs and executes fine with the commands in the book, but the script requires RipGrep in order to parse the results. I am so accustomed to RipGrep being on all of my machines that I forgot to have readers install it for their macOS script. The following command for any macOS users who want the ability to execute the KnockKnock script presented in the book will correct the situation, and make RipGrep available for any other queries.
brew install --cask ripgrep
More details are available in the book.
