I’ve got almost 30 years of using UNIX shells and I’ve learnt a lot more than most, but there are plenty of tools that have things like -r and -R that do radica

I’ve got almost 30 years of using UNIX shells and I’ve learnt a lot more than most, but there are plenty of tools that have things like -r and -R that do radically different things and I don’t always remember the difference between them. If it’s written --recursive then it’s a lot clearer. Clarity is useful even when you have a lot of knowledge and experience.