In trying to understand one-liners like this, I find that it's valuable to break it down into each step. Run the first step to see what it outputs. Then, pipe t

In trying to understand one-liners like this, I find that it's valuable to break it down into each step. Run the first step to see what it outputs. Then, pipe that into the second. Repeat for each step of the process. Google or use the man pages, as needed.