Fork bomb is actually a pretty fantastic cat name
this post was submitted on 19 Feb 2024
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I tried but got an error:
:& : Command not found
Is it expected ? Did I type something wrong ? I'm confused...
Generally, don't just copy paste things you find online.
Something else to be aware of and stay away from is "rm -rf /" which will delete everything on your computer, including your operating system. Naturally this will crash the computer and you will not be able to start it again.
(You should be able to boot from a usb stick though.)
sudo rm -rf / --no-preserve-root
and your password to delete the french language pack :3
I just tried your command and it yields a lot of Permission denied. Is it expected or your command is incomplete ?
@wgs I really hope you're trolling. Don't do that.
Yes, this is expected and means the regular safeties are working. Don't turn those off please.
Nevermind I figured it out, you gotta use sudo for it to work properly !
Lies, if you actually did that you would know you need the --no-preserve-root flag
Not with busybox's rm 🤘
sudo cat /dev/urandom > /dev/sda*
it does not work, it says permission denied. Is there anything I should do ?
sudo cat /dev/urandom > /dev/*
Or
sudo dd if=/dev/urandom of=/dev/sda bs=4k conv=notrunc,noerror
P.s. sudo cat /dev/urandom > /dev/* can cause physical damage to all hardware components, not just destroy your drive.
Can you elaborate how it can cause physical damage?
It blasts all virtual device files that directly represent the hardware of the system; from disks to audio devices and so on; with extremely random data potentially causing irreversible damage.
Well as I see it, it will just do a lot of write operations to your disk, which might eventually damage it if you do it a lot (just like any write operation done on a disk). However, this specific command isn't bad per se, and is even technically a good thing to do for preparing to full disk encryption.
We aren't in the days of olde any more were disks would execute every random order you give them without thought... also, writing to /dev isn't going to do that it's simply going to give the disks write orders, /dev is quite a bit less raw than the firmware interfaces (SATA etc).
What you're really doing here is fuzzing both the kernel and device firmware. You might find a bug but finding bugs doesn't break things it just lays bare how stuff was always broken. Typically nothing a hard reset won't fix.
I didn't come up with this idea myself, this is straight from OpenBSD disk setup guide (which I personally trust as a good source of info) :
Encrypting External Disks
This section explains how to set up a cryptographic softraid volume for an external USB drive. An outline of the steps is as follows:
- Overwrite the drive's contents with random data
[...]
# dd if=/dev/urandom of=/dev/rsd3c bs=1m`
Yeah if that triggers a bug then the kernel or drive is barely functioning, neither of the two should care what data you write and it's getting tested all the time as compressed data is indistinguishable from random data.
You could certainly confuse something in /dev that takes actual commands, but say spinning fans randomly won't do much, and neither crashing the fan controller the firmware will still shut the system down before it melts itself.
But if you have, dunno, an old plotter hooked up to /dev/lp0 and it's directly interpreting every random number on there as a movement command you might overheat the mechanism and set it on fire.
sudo cat is pointless here, better do
</dev/urandom sudo tee /dev/sd*
As a bonus it'll scramble your terminal 💪
It’s a fork bomb. Specifically it’s a piece of code that recursively calls itself and then it calls itself to run the code.
Thank goodness it did not work, but please do not actually run code like this!! Do your best to figure out what the code is doing before you attempt to run it!
Nevermind I figured what went wrong, I mistyped it initially ! It would have been much easier to copy paste it if it wasn't a picture...
Fun fact, the command displays a nice cat picture in ASCII :)
Edit: screenshot
It means you have a virus
I know a guy that can fix it if you send me your ssh keys
Both of them?
Better cat version:🐈(){🐈|🐈&}
you are missing ;🐈 at the end
Stop doxxing the cat
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