I created a little Resource providing identical functionality, without working with xclip or xsel. stdout is copied into a clipboard and can be pasted again from the terminal. See: 如前所述，如果一个激发态分子将其激发态能量通过环境（如溶剂分子）传递给其他分子，则称之为能量跳跃转移，简称能量跃移（hopping transfer）。 Many thanks for the feed-back @PabloAdames! I obtained some comments ... https://petskyonline-onlinestrore.blogspot.com/2025/07/how-to-choose-and-maintain-perfect-dog.html