Xargs -0 pipes regular input into an individual argument. This argument is passed on the bash executable which sends a "duplicate to clipboard" request to klipper making use of qdbus. The pipe to /dev/null is to not print the newline character returned by qdbus into the console. Nevertheless for those https://petskyonline-onlinestrore.blogspot.com/2025/07/the-day-my-cat-got-automatic-feeder-and.html