//Situation
System prompts "xxx is not in the sudoers file"(xxx equals the user name) while executing command "sudo":
- sudo -i
- Password:
- xxx is not in the sudoers file. This incident will be reported.
//Analysis
The current account must have no rights to execute "sudo".
//Solution
To fix the problem, add the current account into the file "/etc/sudoers":
1. Switch to supervisor: su
2. Open the file "sudoers" with vi editor: vi /etc/sudoers
3. Add the account: press "i" to edit; find line "root ALL=(ALL) ALL"; new a line "xxx ALL=(ALL) ALL" below it; save&quit with the command "wq!".
Problem solved.