# Visudo

> Safely edit the sudoers file with syntax validation

- Skill: `javimosch/visudo` (Agent Skill)
- Install (CLI): `npx skillmds@latest add javimosch/visudo`
- Raw SKILL.md: https://api.skillmd.com/api/skills/javimosch/visudo/raw
- Safety review: PASS (external: skill-scanner PASS, skillspector PASS)
- Works with: Claude Code, Claude.ai, OpenAI Codex
- Category: Coding & Dev Tools
- Author: javimosch (https://skillmd.com/u/javimosch)
- Updated: 2026-09-17
- Page: https://skillmd.com/skills/javimosch/visudo

---

# visudo Plugin

Safely edit the sudoers file with built-in syntax validation and file locking.

## Quickstart

```bash
# Edit the default sudoers file
visudo

# Check a sudoers file for syntax errors without editing
visudo -c -f /etc/sudoers.d/custom

# Edit a specific sudoers file
visudo -f /etc/sudoers.d/custom

# Print version
visudo --version
```

## Common Flags

| Flag | Description |
|------|-------------|
| `-c` | Check-only mode (syntax validation) |
| `-f` | Specify an alternate sudoers file |
| `-s` | Strict mode (more syntax checks) |
| `-q` | Quiet mode |
| `--version` | Show version and exit |

## Tips

- Always use `visudo` instead of editing `/etc/sudoers` directly — it prevents lockouts
- Keep custom rules in `/etc/sudoers.d/` for easier management
- Run `visudo -c` before deploying sudoers changes to production