Update cheatsheets

visudo

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+---
+syntax: markdown
+tags: [tldr, common]
+source: https://github.com/tldr-pages/tldr.git
+---
+# visudo
+
+> Safely edit the sudoers file.
+> More information: <https://www.sudo.ws/docs/man/visudo.man>.
+
+- Edit the sudoers file:
+
+`sudo visudo`
+
+- Check the sudoers file for errors:
+
+`sudo visudo -c`
+
+- Edit the sudoers file using a specific editor:
+
+`sudo EDITOR={{editor}} visudo`
+
+- Display version information:
+
+`visudo --version`