The designer of rm is the greater culprit here, not the author of that install script. A single mistyped character should not lead to such drastic consequences.

The designer of rm is the greater culprit here, not the author of that install script. A single mistyped character should not lead to such drastic consequences. "Usability? What's that? I'm really smart, so I don't make mistakes. If lesser humans do - that's their problem". That seems to be the attitude of many Linux programs and rm is among the worst of them. No doubt I'll get downvoted for saying this, but I've rarely, if ever, heard of such things happening in Windows. (And people still manage to delete files in Windows without too much difficulty.)