Xargs -0 pipes standard input into a single argument. This argument is handed to your 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 to your console. @tripleee I had https://petskyonline-onlinestrore.blogspot.com/2025/07/the-day-my-cat-got-automatic-feeder-and.html