visudo:tldr:2ded2

visudo: Edit the sudoers file using a specific editor.

EDITOR=${editor}

$ sudo EDITOR=${editor} visudo

try on your machine

This command allows you to edit the sudoers file, which is a file that determines the privileges and permissions given to users and groups by the sudo command. The "sudo" part of the command is used to run the subsequent command with root privileges.

In this specific command, the "EDITOR=${editor}" portion sets the value of the "EDITOR" environment variable to the value given for ${editor}. The environment variable "EDITOR" usually represents the default text editor to be used when editing files.

Finally, the command "visudo" is executed with root privileges to open the sudoers file using the specified text editor. The "visudo" command is a safe way to edit the sudoers file, as it performs syntax checks to avoid any potential mistakes that could lock users out of sudo access.

This explanation was created by an AI. In most cases those are correct. But please always be careful and never run a command you are not sure if it is safe.

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