Pub

Dart package manager for managing dependencies and publishing packages - Essential commands and usage patterns.

Overview

Pub is a package manager used for dart package manager for managing dependencies and publishing packages. This cheat sheet covers the most commonly used commands and workflows.

Platform Support: Cross-platform Category: Development

Installation

Linux/Ubuntu

# Package manager installation
sudo apt update
sudo apt install pub

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

macOS

# Homebrew installation
brew install pub

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

Windows

# Chocolatey installation
choco install pub

# Scoop installation
scoop install pub

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

Basic Commands

Command	Description
`pub --help`	Display help information
`pub --version`	Show version information
`pub init`	Initialize pub in current directory
`pub status`	Check current status
`pub list`	List available options/items

Common Operations

Basic Usage

# Start pub
pub start

# Stop pub
pub stop

# Restart pub
pub restart

# Check status
pub status

Configuration

# View configuration
pub config show

# Set configuration option
pub config set <key> <value>

# Reset configuration
pub config reset

Advanced Operations

# Verbose output
pub -v <command>

# Debug mode
pub --debug <command>

# Dry run (preview changes)
pub --dry-run <command>

# Force operation
pub --force <command>

File Operations

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

Network Operations

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

# Listen on port
pub listen --port <port>

# Send data
pub send --data "<data>" --target <host>

# Receive data
pub receive --port <port>

Security Features

Authentication

# Login with credentials
pub login --user <username>

# Logout
pub logout

# Change password
pub passwd

# Generate API key
pub generate-key

Encryption

# Encrypt file
pub encrypt <file>

# Decrypt file
pub decrypt <file>

# Generate certificate
pub cert generate

# Verify signature
pub verify <file>

Troubleshooting

Common Issues

Issue: Command not found

# Check if installed
which pub

# Reinstall if necessary
sudo apt reinstall pub

Issue: Permission denied

# Run with sudo
sudo pub <command>

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

Issue: Configuration errors

# Reset configuration
pub config reset

# Validate configuration
pub config validate

Debug Commands

Command	Description
`pub --debug`	Enable debug output
`pub --verbose`	Verbose logging
`pub test`	Run self-tests
`pub 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 pub
pub update

# Clean temporary files
pub clean

# Backup configuration
pub backup --config

# Restore from backup
pub restore --config <backup-file>

Integration

Scripting

#!/bin/bash
# Example script using pub

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

# Run pub with error handling
if pub <command>; then
    echo "Success"
else
    echo "Failed"
    exit 1
fi

API Integration

# Python example
import subprocess
import json

def run_pub(command):
    try:
        result = subprocess.run(['pub'] + 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
`PUB_CONFIG`	Configuration file path	`~/.pub/config`
`PUB_HOME`	Home directory	`~/.pub`
`PUB_LOG_LEVEL`	Logging level	`INFO`
`PUB_TIMEOUT`	Operation timeout	`30s`

Configuration File

# ~/.pub/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
pub init

# 2. Configure
pub config set host example.com

# 3. Connect
pub connect

# 4. Perform operations
pub list
pub create example

# 5. Cleanup
pub disconnect

Advanced Workflow

# Automated deployment
pub deploy \
  --config production.yaml \
  --environment prod \
  --verbose \
  --timeout 300

# Monitoring
pub monitor \
  --interval 60 \
  --alert-threshold 80 \
  --log-file monitor.log

Resources

Official Documentation

Community

Tutorials

Last updated: 2025-07-05