sudo chmod permission denied

2019-09-14 15:46发布

问题:

I accidentally executed the following command:

sudo chmod -R 0700 /lib

Now every single command (even with sudo) gives me a 'permission denied' (even simple commands like 'ls'). I got told because all the important executable files in the lib folder are not executable anymore.

Basically my system is blocked. Is there a way to restore this (it is a server so reinstalling is not an option)?