visudo Command - Safely Edit the sudoers File

The visudo command is used to safely edit the sudoers file, which controls sudo permissions. It locks the file against multiple simultaneous edits and checks for syntax errors before saving.

Syntax

visudo

Examples

sudo visudo

Notes

• Always use visudo to edit the sudoers file to avoid syntax errors that could lock out sudo access.
• The default editor can be changed by setting the EDITOR environment variable.