Disclaimer: Do not run this command.
this post was submitted on 27 Jun 2025
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Obligatory DO NOT RUN THIS ON YOUR COMPUTER (or anyone else's).
You'd think with fully open permissions, everything would work better, but many programs, including important low level things, interpret it as a sign of system damage and will refuse to operate instead.
If you do run it, you'd better have a backup or something like Timeshift to bail you out, and even if you do have that, it's not worth trying it just to see what will happen.
It's not quite as bad as deleting everything because you can boot from external media and back up non-system files after the fact, but the system will almost certainly not work properly and need to be repaired.
You have been warned.
One time I introduced someone to Linux then left them to their own devices.
I returned to them hours later to find out they had gotten annoyed with permissions errors and run
chown -R ${THEIRUSER}: /.The results were not what they wanted.
I did this once by accident (bad scripting, managed to abort it,) it wasn't too bad until sudo told me that the sudoers file had the wrong owner. I then learnt that there are other ways to become root.
OS ran for another ~6months after I re chowned etc to root.
Wow. You were lucky. That abort might have been what saved you there.