Changing back the user rights to sudo
3716
How do I add myself back as a sudo user?
111511
How to make /sbin/shutdown, /sbin/reboot etc. require sudo again in 16.04?
117033
Setting the PATH so it applies to all users, including root/sudo
100535
How can we change root password?
58819
Sudo not available in guest login
19524
How can I determine the sudo password?
86511
How do Ubuntu and Debian manage $HOME for users with sudo privileges?
4423
How to write a script to sudo the last command
95636
Resetting /home permission
7317
how to: Please sudo, do _not_ setup any environment, especially $SUDO_USER?
140654
Giving access of a set of commands to a non-root user without sudo
45541
How to fix sudo after "chmod -R 777 /usr/bin"?
136007
How to enable root login again after changing password?
18871
How often is the password asked for sudo commands? Where can I set it up?
102116
How Should I Correct the Owners and Permissions in an OS X User Folder?
44231
Remove sudo privileges from a user (without deleting the user)
70508
How do I edit /etc/sudoers from a script?