Run sudo without entering a password

4th Nov 2025 Linux

This trick can be useful in case we are the only user using the same machine. Being asked each time for a sudo password can be really grueling.

Open the sudoers file :
```
sudo visudo
```
add this line :
```
sc ALL=(ALL) NOPASSWD: ALL
```
This will allow user "sc" to run all commands without a sudo password.

In case we want the user to run only specific commands :

sc ALL=(ALL) NOPASSWD: /usr//bin/shutdown, /usr/bin/reboot

To allow all members of the demo group to run all commands without a sudo password
```
%demo ALL=(ALL) NOPASSWD: /usr//bin/shutdown, /usr/bin/reboot
```