Linenum

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

Basic Commands

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

Installation

Linux/Ubuntu

# Package manager installation
sudo apt update
sudo apt install linenum

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

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

macOS

# Homebrew installation
brew install linenum

# MacPorts installation
sudo port install linenum

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

Windows

# Chocolatey installation
choco install linenum

# Scoop installation
scoop install linenum

# Winget installation
winget install linenum

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

Configuration

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

Advanced Operations

File Operations

# Create new file/resource
linenum create <name>

# Read file/resource
linenum read <name>

# Update existing file/resource
linenum update <name>

# Delete file/resource
linenum delete <name>

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

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

# List all files/resources
linenum list --all

# Search for files/resources
linenum search <pattern>

Network Operations

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

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

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

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

# Test connectivity
linenum ping <host>

# Scan network range
linenum scan <network>

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

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

Process Management

# Start background process
linenum start --daemon

# Stop running process
linenum stop --force

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

# Check process status
linenum status --verbose

# Monitor process performance
linenum monitor --metrics

# Kill all processes
linenum killall

# Show running processes
linenum ps

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

Security Features

Authentication

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

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

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

# Logout current session
linenum logout

# Change password
linenum passwd

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

# List active sessions
linenum sessions

# Revoke session
linenum revoke --session <session_id>

Encryption

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

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

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

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

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

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

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

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

Monitoring and Logging

System Monitoring

# Monitor system resources
linenum monitor --system

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

# Monitor network activity
linenum monitor --network

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

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

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

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

# View monitoring history
linenum history --type monitoring

Logging

# View logs
linenum logs

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

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

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

# Rotate logs
linenum logs --rotate

# Export logs
linenum logs --export <file>

# Clear logs
linenum logs --clear

# Archive logs
linenum logs --archive <archive_file>

Troubleshooting

Common Issues

Issue: Command not found

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

# Check PATH variable
echo $PATH

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

Issue: Permission denied

# Run with elevated privileges
sudo linenum <command>

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

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

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

Issue: Configuration errors

# Validate configuration
linenum config validate

# Reset to default configuration
linenum config reset

# Check configuration file location
linenum config show --file

# Backup current configuration
linenum config export > backup.conf

# Restore from backup
linenum config import backup.conf

Issue: Service not starting

# Check service status
linenum status --detailed

# Check system logs
journalctl -u linenum

# Start in debug mode
linenum start --debug

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

# Kill conflicting processes
linenum killall --force

Debug Commands

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

Performance Optimization

Resource Management

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

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

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

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

# Clear cache
linenum cache clear

# Show cache statistics
linenum cache stats

# Optimize performance
linenum optimize --profile <profile>

# Show performance metrics
linenum metrics

Parallel Processing

# Enable parallel processing
linenum --parallel <command>

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

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

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

Integration

Scripting

#!/bin/bash
# Example script using linenum

set -euo pipefail

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

# Check if linenum is available
if ! command -v linenum &> /dev/null; then
    echo "Error: linenum 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 linenum operation"

    if linenum --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"
    linenum 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
LINENUM_CONFIG	Configuration file path	~/.linenum/config.yaml
LINENUM_HOME	Home directory	~/.linenum
LINENUM_LOG_LEVEL	Logging level	INFO
LINENUM_LOG_FILE	Log file path	~/.linenum/logs/linenum.log
LINENUM_CACHE_DIR	Cache directory	~/.linenum/cache
LINENUM_DATA_DIR	Data directory	~/.linenum/data
LINENUM_TIMEOUT	Default timeout	30s
LINENUM_MAX_WORKERS	Maximum workers	4

Configuration File

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

# General settings
settings:
  debug: false
  verbose: false
  log_level: "INFO"
  log_file: "~/.linenum/logs/linenum.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: "~/.linenum/cache"
  max_memory: "1G"

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

Examples

Basic Workflow

# 1. Initialize linenum
linenum init

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

# 3. Start service
linenum start

# 4. Check status
linenum status

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

# 6. View results
linenum results

# 7. Stop service
linenum stop

Advanced Workflow

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

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

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

Automation Example

#!/bin/bash
# Automated linenum 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..."

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

done < "$TARGETS_FILE"

# Generate summary report
linenum 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