`sudo`, `gksu` and `gksudo` without password
14589
Execute sudo without Password?
78893
Linux - why do the su and sudo binaries need to be set-UID root?
157146
No user name/password required when exploring from live USB?
44231
Remove sudo privileges from a user (without deleting the user)
71306
Which user's password does `sudo` asks for?
157253
How do I allow non-root access to /ttyUSB0?
8816
Keeping sudo authentication with gnome-terminal
8605
How to run a specific program as root without a password prompt?
3716
How do I add myself back as a sudo user?
7556
How do I sudo a command in a script without being asked for a password?
42571
How do I run a sudo command in Emacs?
138013
How do the internals of sudo work?
157633
How to make 'sudo' grab the password from a file?
18871
How often is the password asked for sudo commands? Where can I set it up?
45102
What are the differences between sudo, su, visudo, chroot, and gksu?
124236
Why I'm not asked to set a password for Root when Installing Ubuntu?
61534
Prompt for sudo password rather than give access error