I recently switched from Windows 8.1 to Ubuntu.
Yesterday, I wanted to install PHP but during tutorial I did this:
sudo chown -R joy /var/www
but now onward for every command it ask for password
$ sudo apt-get install vlc
sudo: /var/lib/sudo owned by uid 1000, should be uid 0
[sudo] password for joy:
I tried to search on google about that & I come to know that I recursively granted ownership of the directory /var/www and all files and subdirectories, to user joy.
Now I want to reset everything back like before I recursively granted ownership.