Nats

Comprehensive nats commands and usage patterns for efficient workflow management.

Overview

Nats is a powerful tool for various operations and system management. This cheat sheet covers essential commands, configuration options, and best practices.

Installation

Linux/Ubuntu

# Package manager installation
sudo apt update
sudo apt install nats

# Alternative installation
wget -O nats https://github.com/example/nats/releases/latest/download/nats-linux
chmod +x nats
sudo mv nats /usr/local/bin/

macOS

# Homebrew installation
brew install nats

# Manual installation
curl -L -o nats https://github.com/example/nats/releases/latest/download/nats-macos
chmod +x nats
sudo mv nats /usr/local/bin/

Windows

# Chocolatey installation
choco install nats

# Scoop installation
scoop install nats

# Manual installation
# Download from official website and add to PATH

Basic Commands

Command	Description
`nats --help`	Display help information
`nats --version`	Show version information
`nats init`	Initialize nats in current directory
`nats status`	Check current status
`nats list`	List available options
`nats info`	Display system information
`nats config`	Show configuration
`nats update`	Update to latest version

Essential Operations

Getting Started

# Initialize nats
nats init

# Basic usage
nats run

# With verbose output
nats --verbose run

# With configuration file
nats --config config.yaml run

Configuration

# View configuration
nats config show

# Set configuration option
nats config set key value

# Get configuration value
nats config get key

# Reset configuration
nats config reset

Advanced Operations

# Debug mode
nats --debug run

# Dry run (preview changes)
nats --dry-run run

# Force operation
nats --force run

# Parallel execution
nats --parallel run

File Operations

Command	Description
`nats create <file>`	Create new file
`nats read <file>`	Read file contents
`nats update <file>`	Update existing file
`nats delete <file>`	Delete file
`nats copy <src> <dst>`	Copy file
`nats move <src> <dst>`	Move file

Network Operations

# Connect to remote host
nats connect host:port

# Listen on port
nats listen --port 8080

# Send data
nats send --data "message" --target host

# Receive data
nats receive --port 8080

Security Features

Authentication

# Login with credentials
nats login --user username

# Logout
nats logout

# Change password
nats passwd

# Generate API key
nats generate-key

Encryption

# Encrypt file
nats encrypt file.txt

# Decrypt file
nats decrypt file.txt.enc

# Generate certificate
nats cert generate

# Verify signature
nats verify file.sig

Troubleshooting

Common Issues

Issue: Command not found

# Check if installed
which nats

# Reinstall if necessary
sudo apt reinstall nats

Issue: Permission denied

# Run with sudo
sudo nats command

# Fix permissions
chmod +x /usr/local/bin/nats

Issue: Configuration errors

# Reset configuration
nats config reset

# Validate configuration
nats config validate

Debug Commands

Command	Description
`nats --debug`	Enable debug output
`nats --verbose`	Verbose logging
`nats test`	Run self-tests
`nats doctor`	Check system health

Best Practices

Security

Always verify checksums when downloading
Use strong authentication methods
Regularly update to latest version
Follow principle of least privilege

Performance

Use appropriate buffer sizes
Monitor resource usage
Optimize configuration for your use case
Regular maintenance and cleanup

Maintenance

# Update nats
nats update

# Clean temporary files
nats clean

# Backup configuration
nats backup --config

# Restore from backup
nats restore --config backup.yaml

Integration

Scripting

#!/bin/bash
# Example script using nats

if ! command -v nats &> /dev/null; then
    echo "nats is not installed"
    exit 1
fi

if nats run; then
    echo "Success"
else
    echo "Failed"
    exit 1
fi

API Integration

import subprocess
import json

def run_nats(command):
    try:
        result = subprocess.run(['nats'] + command.split(),
                              capture_output=True, text=True)
        return result.stdout
    except Exception as e:
        print(f"Error: \\\\{e\\\\}")
        return None

Environment Variables

Variable	Description	Default
`NATS_CONFIG`	Configuration file path	`~/.nats/config`
`NATS_HOME`	Home directory	`~/.nats`
`NATS_LOG_LEVEL`	Logging level	`INFO`
`NATS_TIMEOUT`	Operation timeout	`30s`

Configuration File

# ~/.nats/config.yaml
version: "1.0"
settings:
  debug: false
  timeout: 30
  log_level: "INFO"

network:
  host: "localhost"
  port: 8080
  ssl: true

security:
  auth_required: true
  encryption: "AES256"

Examples

Basic Workflow

# 1. Initialize
nats init

# 2. Configure
nats config set host example.com

# 3. Run operation
nats run

# 4. Check results
nats status

# 5. Cleanup
nats clean

Advanced Workflow

# Comprehensive operation
nats run \
  --config production.yaml \
  --parallel \
  --verbose \
  --timeout 300

# Monitoring
nats monitor \
  --interval 60 \
  --alert-threshold 80

Resources

Official Documentation

Community

Tutorials

Last updated: 2025-07-05