visudo is a command-line utility used to safely edit the sudoers file, which controls the permissions for users to run commands with sudo. It provides syntax checking to prevent errors that could lock you out of sudo access.
To use visudo, simply type:
sudo visudo
This opens the sudoers file in a text editor (usually nano or vi, depending on your system configuration). After making your changes, save and exit the editor. If there are any syntax errors, visudo will alert you, allowing you to correct them before saving.
