How do I wipe a Mac's hard drive completely?

Pokemon GO to the polls

boot into recovery mode, load disk utility

Boot into a Live Linux distro and dd urandom over the target disk.

HOLY SHIT LOOK AT THIS REDDITFAG RIGHT HERE LOL

dem DINDU NUFFINS

based

Attached: HardDriveShredding-Web-banner.jpg (900x554, 66K)

dban or

Ask from data recovery to do it for you and then pay them 30$

dban.org/

And then fill the whole harddrive with random data and run it again

Repeat it 2 times and its should be impossible to recover
If it has something you want noone to see like you fapping in a dark room on gay porn
Do it 30 times and i promise you cant recover shit from this hard drive

Also simple alt + f4 could help always