So-called " benign" viruses might simply display a message. Malignant viruses are designed to damage the system. The attack is to wipe out data, to delete files, or to format the hard disk.
It's actually "rm" in Linux, but anyway, making everything easy to discover and learn sometimes means slow to access, which conflicts with another psychology concept: expertise.
顺带一说, Linux 里删除文件命令 "rm",回到正题,让所有菜单选项好找好记,有时候意味着用时候会慢一些,这与另一个心理学概念冲突:"专业知识"。