No password to run command as root for fixed command?
8605
How to run a specific program as root without a password prompt?
102006
Run a shell script as another user that has no password
78197
How to set user passwords using passwd without a prompt?
43428
Run script as root at login (no sudoer user, shell session)
42702
Can not change permissions while root
130404
How to make password show asterisks as I type it when running `sudo` command?
86192
How to run applications as root?
122675
Why don't I have a password for "su"? Problems with "sudo"
146129
How do I auto-login as root into the TTY upon boot?
130082
How to change root password in ubuntu?
16597
No password prompt at sudo command
65829
How to run a command as a user whose login is disabled?
122621
Allowing a user to use sudo without a password
40667
How do I gain root privileges?
97567
How do I set persistent environment variables for root?
4227
How do I login as root?
9326
How to enable root login?