sudo: no valid sudoers sources found, quitting
16116
How to modify an invalid '/etc/sudoers' file?
15413
sudo apt update always giving Clearsigned file isn't valid, got 'NOSPLIT' (does the network require authentication?)
119015
Sudo doesn't work on Aliases
32185
Why does sudo change the PATH?
122675
Why don't I have a password for "su"? Problems with "sudo"
143096
Sudoers NOPASSWD for single executable but allowing others
7525
Why isn't this sudo mv operation with wildcard working?
14750
How to Fix "Read-only file system" error when I run something as sudo and try to make a folder/file?
157360
Is there ever a good reason to run sudo su?
9180
Is there any 'sudo' command for Windows?
42571
How do I run a sudo command in Emacs?
75827
When I run a sudo command it says unable to resolve host
80078
How can I fix broken sudo - sudo: parse error in /etc/sudoers near line 23?
47119
Sudo comes up with an error, cannot run anything as root
58819
Sudo not available in guest login
13760
How do I grant sudo privileges to an existing user?
66647
How do I add a user to the "sudo" group?