# Zet

> zet — CLI utility for set operations (union, intersection, difference) on lines

- Skill: `javimosch/zet` (Agent Skill)
- Install (CLI): `npx skillmds@latest add javimosch/zet`
- Raw SKILL.md: https://api.skillmd.com/api/skills/javimosch/zet/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/zet

---

# zet Plugin

zet — CLI utility for set operations (union, intersection, difference) on lines from files or stdin.

## Quickstart

zet performs set operations (union, intersection, difference, and symmetric difference) on lines from files or stdin.

```bash
# Union of two files
zet union file1.txt file2.txt

# Intersection
zet intersect file1.txt file2.txt

# Difference (lines in A but not in B)
zet diff file1.txt file2.txt

# Symmetric difference
zet symdiff file1.txt file2.txt
```