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I am getting this error:
sudo: parse error in /etc/sudoers near line 23 sudo: no valid sudoers sources found, quitting sudo: unable to initialize policy plugin
I was trying to disable password authentication so I don't have to type password every time I want to install something, but I probably changed it in a not very good way. I am a newbie to Ubuntu, I got sick of Windows :)
So far I've found some people suggesting booting in single user mode, but I'm afraid of messing things up more.
How can I fix this error?