My user is not in the sudoers file
3716
How do I add myself back as a sudo user?
5494
Permission denied, are you root?
122675
Why don't I have a password for "su"? Problems with "sudo"
12201
Can't change the owner back to the root (can't use sudo command) in WSL Ubuntu
73466
How to solve "sudo: /etc/sudoers.d is world writable"
136590
How do I deal with 'sudoers.so must be only be writable by owner'?
15255
How can I add a new user as sudoer using the command line?
125289
Ubuntu user disappeared from machine
46726
Does user have to logoff then back on if I change /etc/sudoers?
84473
sudo for users with empty passwords
67698
What is the root user
13760
How do I grant sudo privileges to an existing user?
56480
sudo: /var/lib/sudo writable by non-owner (040777), should be mode 0700
31899
" sudo: source: command not found"
4227
How do I login as root?
126556
Parse error in sudoers file
134299
"You are not the owner..." message when trying to access folder