✈️ Airport Code Lookup Tool

A lightweight Zsh utility script to quickly lookup airport names, cities, and countries from your terminal using standard three-letter IATA codes (e.g., SFO) or four-letter ICAO codes (e.g., KSFO).

It securely caches the massive airportsdata dataset locally so lookups are lightning-fast after the first run.

🚀 Features

• Dual Format Support: Accepts both IATA (LHR, DXB) and ICAO (EGLL, OMDB) codes.
• Smart Input Sanitization: Automatically handles lowercase inputs and strips out trailing identifiers (e.g., sfo123 becomes SFO).
• ASCII Map Visualization: Pass the --map flag to render an equirectangular ASCII world map directly in your terminal, pinpointing the exact location of the airport.
• Offline First: Downloads the database once and saves it locally (~/.airport_codes_cache.csv) for subsequent instant lookups.

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📋 Prerequisites

This script is optimized for macOS or any system running:

• Zsh (Z Shell)
• Python 3 (installed by default on modern operating systems)
• curl (for the initial dataset download)