That only makes sense: we don’t want any old fool to edit sudoers. You need administrator access to run visudo.
The visudo command opens the sudoers file properly and prohibits simultaneous edits. To edit sudoers, you’ll execute the visudo command in Terminal. A corrupted sudoers file means admin access is completely impossible until the file is fixed or replaced. Edit sudoers with TextEdit or similar and you can easily corrupt the sudoers file.
Using a regular text editor is technically possible, but its an extremely bad idea. You must edit sudoers with the visudo command. But as long as single users have root-level permissions, personal machines like don’t require you to edit sudoers. System administrators, even small ones, might want power over who can run sudo and for what purpose. Your admin-level accounts are automatically added by macOS, and controlling other users is irrelevant.
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If your Mac is only a single-user device, it’s unlikely that you’ll have any particular reason to edit the sudoers file. You do not need to edit sudoers to add admin accounts, unless you want to limit an accounts superuser access. If you need to grant a standard non-admin user permission to run sudo, you will need to edit sudoers to manually add the user account. Standard, non-admin accounts created afterwards won’t have sudoers permission by default. This allows that account to run administrative tasks with the sudo command by default.
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When you first install macOS, the first and default user will be auto-added to the sudoers file. It controls how users can access the sudo command. Its a dangerous tool, and not every user should have access to it. Sudo allows users to execute commands that would otherwise be forbidden. It allows a user to run commands as root, the all-powerful superuser on Linux and macOS systems. If you’ve done anything with Terminal, you’ll recognize the sudo command. The sudoers file is a text file that lives at “/etc/sudoers.” It controls how sudo works on your machine. We can edit sudoers on macOS to administer a multi-user system more effectively. This file says which users can run sudo, and what they can do when they run it. Within your macOS system, there’s a file called “sudoers” which controls the deepest levels of your permissions system.
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