rand_tool

A formidable random number generator capable of producing passwords, service ports, and UUIDs, alongside the ability to encode and decode Base64.

Installation

cargo install rand_tool

Features

• Password Generation: Create strong, random passwords with configurable length and character sets
• Port Generation: Generate random port numbers within specified ranges
• UUID Generation: Generate Version 4 UUIDs
• Base64 Operations: Encode and decode Base64 strings

Usage

Password Generation

Generate random passwords with customizable options:

# Generate 5 passwords (18 chars, numbers + uppercase + lowercase, default)
rand_tool pwd

# Generate 10 passwords with 24 characters
rand_tool -c 10 pwd -c 24

# Generate password with special symbols
rand_tool pwd -s

# Generate password without numbers
rand_tool pwd -n

# Generate password with only lowercase letters
rand_tool pwd -u -n

Options:

• -c, --count <COUNT>: Number of passwords to generate (default: 5)
• -c --length <LENGTH>: Password length (default: 18)
• -n --numbers: Exclude digits 0-9
• -u --uppercase: Exclude uppercase letters A-Z
• -l --lowercase: Exclude lowercase letters a-z
• -s, --symbols: Include special characters

Port Generation

Generate random port numbers within a specified range:

# Generate 5 random ports (default range: 1024-49151)
rand_tool port

# Generate 10 ports in custom range
rand_tool -c 10 port --range 8000-9000

# Generate ports in specific range
rand_tool port -r 3000-3100

# Generate unique ports without duplicates
rand_tool -c 10 port --range 8000-9000 --unique

Options:

• -c, --count <COUNT>: Number of ports to generate (default: 5)
• -r, --range <RANGE>: Port range in format "min-max" (default: 1024-49151)
• --unique: Generate unique ports without duplicates

UUID Generation

Generate Version 4 UUIDs:

# Generate 5 UUIDs (default)
rand_tool uuid

# Generate 20 UUIDs
rand_tool -c 20 uuid

Base64 Operations

Encode and decode Base64 strings:

# Encode string to Base64
rand_tool base64 --encode "Hello, World!"

# Decode Base64 string
rand_tool base64 --decode "SGVsbG8sIFdvcmxkIQ=="

Options:

• -e, --encode <STRING>: Encode UTF-8 string to Base64
• -d, --decode <STRING>: Decode Base64 string to UTF-8

Exactly one of --encode or --decode is required.

Global Options

• -c, --count <COUNT>: Default quantity of items to generate (default: 5)
• -h, --help: Print help information
• -V, --version: Print version information

Examples

# Generate 3 strong passwords with symbols
rand_tool -c 3 pwd --length 32 --symbols

# Generate 100 ports for testing
rand_tool -c 100 port --range 10000-20000

# Generate single UUID
rand_tool -c 1 uuid

# Encode sensitive data
rand_tool base64 -e "my-secret-key"