uuidgen

name	UUIDGen
description	Generate UUIDs, short IDs, and nano IDs. Use when creating database keys, minting session tokens, generating unique filenames, or producing batch IDs.
version	3.0.0
author	BytesAgain
homepage	https://bytesagain.com
source	https://github.com/bytesagain/ai-skills
tags	["uuid","generator","random","id","unique","developer","utility"]
categories	["Developer Tools","Utility"]

UUIDGen

A real UUID generator and validator. Generate v4 UUIDs, batch-create multiple IDs, validate UUID format, extract UUIDs from text, and generate short 8-character IDs. Uses /proc/sys/kernel/random/uuid on Linux or falls back to python3 uuid module.

Commands

Command	Description
uuidgen v4	Generate a single random UUID v4 (with compact, uppercase, and URN formats)
uuidgen batch <count>	Generate multiple UUIDs (default: 5, max: 1000)
uuidgen validate <uuid>	Check if a string is a valid UUID (shows version, variant, and format details)
uuidgen extract <text>	Find and extract all UUIDs from a text string
uuidgen short	Generate a short 8-character UUID (plus 3 alternatives)
uuidgen version	Show version
uuidgen help	Show available commands and usage

Requirements

• Bash 4+ (set -euo pipefail)
• One of: /proc/sys/kernel/random/uuid (Linux), python3, or /dev/urandom
• No external dependencies or API keys

When to Use

1. Generate database keys — uuidgen v4 for a single ID, uuidgen batch 100 for bulk
2. Validate user-supplied UUIDs — uuidgen validate <uuid> checks format, detects version and variant
3. Extract IDs from logs/text — uuidgen extract "Error for session 550e8400-e29b-..." pulls out all UUIDs
4. Short identifiers — uuidgen short for 8-char IDs suitable for URLs or display
5. Batch ID generation — uuidgen batch 50 creates 50 UUIDs numbered for easy reference

Examples

# Generate a single UUID v4
uuidgen v4

# Generate 10 UUIDs
uuidgen batch 10

# Validate a UUID
uuidgen validate '550e8400-e29b-41d4-a716-446655440000'

# Extract UUIDs from text
uuidgen extract 'User 550e8400-e29b-41d4-a716-446655440000 created session abc12345-dead-beef-cafe-123456789012'

# Generate a short 8-char UUID
uuidgen short

Example Output

$ uuidgen v4
┌──────────────────────────────────────────────────┐
│  UUID v4 Generated                               │
├──────────────────────────────────────────────────┤
│  UUID:     1a28540e-25e6-4efe-86a8-93f41e16dad8   │
│  Compact:  1a28540e25e64efe86a893f41e16dad8       │
│  Upper:    1A28540E-25E6-4EFE-86A8-93F41E16DAD8   │
│  URN:      urn:uuid:1a28540e-25e6-4efe-86a8-...   │
└──────────────────────────────────────────────────┘

$ uuidgen validate '550e8400-e29b-41d4-a716-446655440000'
┌──────────────────────────────────────────────────┐
│  UUID Validation                                 │
├──────────────────────────────────────────────────┤
│  Input:    550e8400-e29b-41d4-a716-446655440000   │
│  Valid:    ✅ YES                                 │
│  Version:  v4 (random)                            │
│  Variant:  RFC 4122 / DCE                         │
│  Compact:  550e8400e29b41d4a716446655440000       │
└──────────────────────────────────────────────────┘

$ uuidgen batch 3
═══════════════════════════════════════════════════════
  Generating 3 UUIDs
═══════════════════════════════════════════════════════

   1. b54a201e-47d7-463e-9539-86e08201b4f0
   2. 7fa328ef-fba4-4a7a-94c2-2dc431079aae
   3. 0d382fb3-0c52-424b-a7cd-416f6c29ad49

Generated 3 UUID(s).

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