Gpg

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Comprehensive gpg commands and workflows for system administration across all platforms.

Basic Commands

Command	Description
gpg --version	Show gpg version
gpg --help	Display help information
gpg init	Initialize gpg in current directory
gpg status	Check current status
gpg list	List available options
gpg info	Display system information
gpg config	Show configuration settings
gpg update	Update to latest version
gpg start	Start gpg service
gpg stop	Stop gpg service
gpg restart	Restart gpg service
gpg reload	Reload configuration

Installation

Linux/Ubuntu

# Package manager installation
sudo apt update
sudo apt install gpg

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

# Build from source
git clone https://github.com/example/gpg.git
cd gpg
make && sudo make install

macOS

# Homebrew installation
brew install gpg

# MacPorts installation
sudo port install gpg

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

Windows

# Chocolatey installation
choco install gpg

# Scoop installation
scoop install gpg

# Winget installation
winget install gpg

# Manual installation
# Download from https://github.com/example/gpg/releases
# Extract and add to PATH

Configuration

Command	Description
gpg config show	Display current configuration
gpg config list	List all configuration options
gpg config set <key> <value>	Set configuration value
gpg config get <key>	Get configuration value
gpg config unset <key>	Remove configuration value
gpg config reset	Reset to default configuration
gpg config validate	Validate configuration file
gpg config export	Export configuration to file

Advanced Operations

File Operations

# Create new file/resource
gpg create <name>

# Read file/resource
gpg read <name>

# Update existing file/resource
gpg update <name>

# Delete file/resource
gpg delete <name>

# Copy file/resource
gpg copy <source> <destination>

# Move file/resource
gpg move <source> <destination>

# List all files/resources
gpg list --all

# Search for files/resources
gpg search <pattern>

Network Operations

# Connect to remote host
gpg connect <host>:<port>

# Listen on specific port
gpg listen --port <port>

# Send data to target
gpg send --target <host> --data "<data>"

# Receive data from source
gpg receive --source <host>

# Test connectivity
gpg ping <host>

# Scan network range
gpg scan <network>

# Monitor network traffic
gpg monitor --interface <interface>

# Proxy connections
gpg proxy --listen <port> --target <host>:<port>

Process Management

# Start background process
gpg start --daemon

# Stop running process
gpg stop --force

# Restart with new configuration
gpg restart --config <file>

# Check process status
gpg status --verbose

# Monitor process performance
gpg monitor --metrics

# Kill all processes
gpg killall

# Show running processes
gpg ps

# Manage process priority
gpg priority --pid <pid> --level <level>

Security Features

Authentication

# Login with username/password
gpg login --user <username>

# Login with API key
gpg login --api-key <key>

# Login with certificate
gpg login --cert <cert_file>

# Logout current session
gpg logout

# Change password
gpg passwd

# Generate new API key
gpg generate-key --name <key_name>

# List active sessions
gpg sessions

# Revoke session
gpg revoke --session <session_id>

Encryption

# Encrypt file
gpg encrypt --input <file> --output <encrypted_file>

# Decrypt file
gpg decrypt --input <encrypted_file> --output <file>

# Generate encryption key
gpg keygen --type <type> --size <size>

# Sign file
gpg sign --input <file> --key <private_key>

# Verify signature
gpg verify --input <file> --signature <sig_file>

# Hash file
gpg hash --algorithm <algo> --input <file>

# Generate certificate
gpg cert generate --name <name> --days <days>

# Verify certificate
gpg cert verify --cert <cert_file>

Monitoring and Logging

System Monitoring

# Monitor system resources
gpg monitor --system

# Monitor specific process
gpg monitor --pid <pid>

# Monitor network activity
gpg monitor --network

# Monitor file changes
gpg monitor --files <directory>

# Real-time monitoring
gpg monitor --real-time --interval 1

# Generate monitoring report
gpg report --type monitoring --output <file>

# Set monitoring alerts
gpg alert --threshold <value> --action <action>

# View monitoring history
gpg history --type monitoring

Logging

# View logs
gpg logs

# View logs with filter
gpg logs --filter <pattern>

# Follow logs in real-time
gpg logs --follow

# Set log level
gpg logs --level <level>

# Rotate logs
gpg logs --rotate

# Export logs
gpg logs --export <file>

# Clear logs
gpg logs --clear

# Archive logs
gpg logs --archive <archive_file>

Troubleshooting

Common Issues

Issue: Command not found

# Check if gpg is installed
which gpg
gpg --version

# Check PATH variable
echo $PATH

# Reinstall if necessary
sudo apt reinstall gpg
# or
brew reinstall gpg

Issue: Permission denied

# Run with elevated privileges
sudo gpg <command>

# Check file permissions
ls -la $(which gpg)

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

# Check ownership
sudo chown $USER:$USER /usr/local/bin/gpg

Issue: Configuration errors

# Validate configuration
gpg config validate

# Reset to default configuration
gpg config reset

# Check configuration file location
gpg config show --file

# Backup current configuration
gpg config export > backup.conf

# Restore from backup
gpg config import backup.conf

Issue: Service not starting

# Check service status
gpg status --detailed

# Check system logs
journalctl -u gpg

# Start in debug mode
gpg start --debug

# Check port availability
netstat -tulpn|grep <port>

# Kill conflicting processes
gpg killall --force

Debug Commands

Command	Description
gpg --debug	Enable debug output
gpg --verbose	Enable verbose logging
gpg --trace	Enable trace logging
gpg test	Run built-in tests
gpg doctor	Run system health check
gpg diagnose	Generate diagnostic report
gpg benchmark	Run performance benchmarks
gpg validate	Validate installation and configuration

Performance Optimization

Resource Management

# Set memory limit
gpg --max-memory 1G <command>

# Set CPU limit
gpg --max-cpu 2 <command>

# Enable caching
gpg --cache-enabled <command>

# Set cache size
gpg --cache-size 100M <command>

# Clear cache
gpg cache clear

# Show cache statistics
gpg cache stats

# Optimize performance
gpg optimize --profile <profile>

# Show performance metrics
gpg metrics

Parallel Processing

# Enable parallel processing
gpg --parallel <command>

# Set number of workers
gpg --workers 4 <command>

# Process in batches
gpg --batch-size 100 <command>

# Queue management
gpg queue add <item>
gpg queue process
gpg queue status
gpg queue clear

Integration

Scripting

#!/bin/bash
# Example script using gpg

set -euo pipefail

# Configuration
CONFIG_FILE="config.yaml"
LOG_FILE="gpg.log"

# Check if gpg is available
if ! command -v gpg &> /dev/null; then
    echo "Error: gpg is not installed" >&2
    exit 1
fi

# Function to log messages
log() \\\\{
    echo "$(date '+%Y-%m-%d %H:%M:%S') - $1"|tee -a "$LOG_FILE"
\\\\}

# Main operation
main() \\\\{
    log "Starting gpg operation"

    if gpg --config "$CONFIG_FILE" run; then
        log "Operation completed successfully"
        exit 0
    else
        log "Operation failed with exit code $?"
        exit 1
    fi
\\\\}

# Cleanup function
cleanup() \\\\{
    log "Cleaning up"
    gpg cleanup
\\\\}

# Set trap for cleanup
trap cleanup EXIT

# Run main function
main "$@"

API Integration

#!/usr/bin/env python3
"""
Python wrapper for the tool
"""

import subprocess
import json
import logging
from pathlib import Path
from typing import Dict, List, Optional

class ToolWrapper:
    def __init__(self, config_file: Optional[str] = None):
        self.config_file = config_file
        self.logger = logging.getLogger(__name__)

    def run_command(self, args: List[str]) -> Dict:
        """Run command and return parsed output"""
        cmd = ['tool_name']

        if self.config_file:
            cmd.extend(['--config', self.config_file])

        cmd.extend(args)

        try:
            result = subprocess.run(
                cmd,
                capture_output=True,
                text=True,
                check=True
            )
            return \\\\{'stdout': result.stdout, 'stderr': result.stderr\\\\}
        except subprocess.CalledProcessError as e:
            self.logger.error(f"Command failed: \\\\{e\\\\}")
            raise

    def status(self) -> Dict:
        """Get current status"""
        return self.run_command(['status'])

    def start(self) -> Dict:
        """Start service"""
        return self.run_command(['start'])

    def stop(self) -> Dict:
        """Stop service"""
        return self.run_command(['stop'])

# Example usage
if __name__ == "__main__":
    wrapper = ToolWrapper()
    status = wrapper.status()
    print(json.dumps(status, indent=2))

Environment Variables

Variable	Description	Default
GPG_CONFIG	Configuration file path	~/.gpg/config.yaml
GPG_HOME	Home directory	~/.gpg
GPG_LOG_LEVEL	Logging level	INFO
GPG_LOG_FILE	Log file path	~/.gpg/logs/gpg.log
GPG_CACHE_DIR	Cache directory	~/.gpg/cache
GPG_DATA_DIR	Data directory	~/.gpg/data
GPG_TIMEOUT	Default timeout	30s
GPG_MAX_WORKERS	Maximum workers	4

Configuration File

# ~/.gpg/config.yaml
version: "1.0"

# General settings
settings:
  debug: false
  verbose: false
  log_level: "INFO"
  log_file: "~/.gpg/logs/gpg.log"
  timeout: 30
  max_workers: 4

# Network configuration
network:
  host: "localhost"
  port: 8080
  ssl: true
  timeout: 30
  retries: 3

# Security settings
security:
  auth_required: true
  api_key: ""
  encryption: "AES256"
  verify_ssl: true

# Performance settings
performance:
  cache_enabled: true
  cache_size: "100M"
  cache_dir: "~/.gpg/cache"
  max_memory: "1G"

# Monitoring settings
monitoring:
  enabled: true
  interval: 60
  metrics_enabled: true
  alerts_enabled: true

Examples

Basic Workflow

# 1. Initialize gpg
gpg init

# 2. Configure basic settings
gpg config set host example.com
gpg config set port 8080

# 3. Start service
gpg start

# 4. Check status
gpg status

# 5. Perform operations
gpg run --target example.com

# 6. View results
gpg results

# 7. Stop service
gpg stop

Advanced Workflow

# Comprehensive operation with monitoring
gpg run \
  --config production.yaml \
  --parallel \
  --workers 8 \
  --verbose \
  --timeout 300 \
  --output json \
  --log-file operation.log

# Monitor in real-time
gpg monitor --real-time --interval 5

# Generate report
gpg report --type comprehensive --output report.html

Automation Example

#!/bin/bash
# Automated gpg workflow

# Configuration
TARGETS_FILE="targets.txt"
RESULTS_DIR="results/$(date +%Y-%m-%d)"
CONFIG_FILE="automation.yaml"

# Create results directory
mkdir -p "$RESULTS_DIR"

# Process each target
while IFS= read -r target; do
    echo "Processing $target..."

    gpg \
        --config "$CONFIG_FILE" \
        --output json \
        --output-file "$RESULTS_DIR/$\\\\{target\\\\}.json" \
        run "$target"

done < "$TARGETS_FILE"

# Generate summary report
gpg report summary \
    --input "$RESULTS_DIR/*.json" \
    --output "$RESULTS_DIR/summary.html"

Best Practices

Security

• Always verify checksums when downloading binaries
• Use strong authentication methods (API keys, certificates)
• Regularly update to the latest version
• Follow principle of least privilege
• Enable audit logging for compliance
• Use encrypted connections when possible
• Validate all inputs and configurations
• Implement proper access controls

Performance

• Use appropriate resource limits for your environment
• Monitor system performance regularly
• Optimize configuration for your use case
• Use parallel processing when beneficial
• Implement proper caching strategies
• Regular maintenance and cleanup
• Profile performance bottlenecks
• Use efficient algorithms and data structures

Operational

• Maintain comprehensive documentation
• Implement proper backup strategies
• Use version control for configurations
• Monitor and alert on critical metrics
• Implement proper error handling
• Use automation for repetitive tasks
• Regular security audits and updates
• Plan for disaster recovery

Development

• Follow coding standards and conventions
• Write comprehensive tests
• Use continuous integration/deployment
• Implement proper logging and monitoring
• Document APIs and interfaces
• Use version control effectively
• Review code regularly
• Maintain backward compatibility

Resources

Official Documentation

• Official Website
• Documentation
• API Reference
• Installation Guide
• Configuration Reference

Community Resources

• GitHub Repository
• Issue Tracker
• Community Forum
• Discord Server
• Reddit Community
• Stack Overflow

Learning Resources

• Getting Started Guide
• Tutorial Series
• Best Practices Guide
• Video Tutorials
• Training Courses
• Certification Program

Related Tools

• Git - Complementary functionality
• Docker - Alternative solution
• Kubernetes - Integration partner

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Last updated: 2025-07-06|Edit on GitHub