What happens when you type 'sudo rm -rf /' in OSX Terminal.app

Here you can see what will happen to your beloved macintosh if you are trolled into "To enable super secret Mac PC mode please open terminal app and type 'sudo rm -f /' and type in your password when prompted" kind of social engineering prank.

[merleschlosser]

One of the most useful commands on Mac

[edomarr]

That is actually satisfying. Stick it to the man!

[weareallbeingwatched]

Using DD to write sectors of zeroes or random data is worse... this method would permit data recovery.

[deviantsemicolon]

I 100% support the use of rm -rf on OSX, and I encourage all OSX users to use it.

[theinternet]

Actually that's the most useful command you can type on a Mac.

[G_kendall]

I deleted something in system and now my mac is not starting up

[tz]

sudo means "i'm the owner of the laptop so i can do everything"
rm means "remove"
-rf means (?)