What is “rdfind” Package?

Find duplicate files based on content (NOT file names)
For more details: https://rdfind.pauldreik.se/

Installation

• Open Terminal by pressing command+space then type terminal and hit Enter key.
• Install homebrew first.

  ruby -e "$(curl -fsSL https://raw.githubusercontent.com/Homebrew/install/master/install)" < /dev/null 2> /dev/null

• Install rdfind.

  brew install rdfind

Now, use rdfind!