an artificial satellite is an orbiting object that is man-made, as opposed to natural satellites such as moons and asteroids

over a decade ago

It shouldn’t brick your PC, but it has happened as a result of computers improperly complying with UEFI spec. There are far easier and safer ways to clear a hard drive than deleting every file and folder recursively.

r and f are just flags, meaning recursive and force, so it doesn’t matter the order