Cron

كرون

📋 Copy All Commands 📄 Generate PDF| أمر | وصف | |---------|-------------| | cron --version | اعرض إصدار cron | | cron --help | عرض معلومات المساعدة | | cron init | قم بتهيئة cron في الدليل الحالي | | cron status | تحقق من الحالة الحالية | | cron list | قائمة الخيارات المتاحة | | cron info | عرض معلومات النظام | | cron config | إظهار إعدادات التكوين | | cron update | قم بالتحديث إلى أحدث إصدار | | cron start | ابدأ خدمة cron | | cron stop | إيقاف خدمة cron | | cron restart | إعادة تشغيل خدمة cron | | cron reload | إعادة تحميل التكوين |شامل لأوامر كرون وسير العمل للإدارة النظامية عبر جميع المنصات.

# Package manager installation
sudo apt update
sudo apt install cron

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

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

### Linux/Ubuntu
```bash
# Homebrew installation
brew install cron

# MacPorts installation
sudo port install cron

# Manual installation
curl -L -o cron https://github.com/example/cron/releases/latest/download/cron-macos
chmod +x cron
sudo mv cron /usr/local/bin/
```### macOS
```powershell
# Chocolatey installation
choco install cron

# Scoop installation
scoop install cron

# Winget installation
winget install cron

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

| أمر | وصف |
|---------|-------------|
| `cron config show` | عرض التكوين الحالي |
| `cron config list` | قائمة بجميع خيارات التكوين |
| `cron config set <key> <value>` | قيّم قيمة التكوين |
| `cron config get <key>` | احصل على قيمة التكوين |
| `cron config unset <key>` | إزالة قيمة التكوين |
| `cron config reset` | إعادة التعيين إلى التكوين الافتراضي |
| `cron config validate` | تحقق من صحة ملف التكوين |
| `cron config export` | تصدير التكوين إلى ملف |## الإعداد
```bash
# Create new file/resource
cron create <name>

# Read file/resource
cron read <name>

# Update existing file/resource
cron update <name>

# Delete file/resource
cron delete <name>

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

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

# List all files/resources
cron list --all

# Search for files/resources
cron search <pattern>
```### عمليات الملفات
```bash
# Connect to remote host
cron connect <host>:<port>

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

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

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

# Test connectivity
cron ping <host>

# Scan network range
cron scan <network>

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

# Proxy connections
cron proxy --listen <port> --target <host>:<port>
```### عمليات الشبكة
```bash
# Start background process
cron start --daemon

# Stop running process
cron stop --force

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

# Check process status
cron status --verbose

# Monitor process performance
cron monitor --metrics

# Kill all processes
cron killall

# Show running processes
cron ps

# Manage process priority
cron priority --pid <pid> --level <level>
```### إدارة العمليات
```bash
# Login with username/password
cron login --user <username>

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

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

# Logout current session
cron logout

# Change password
cron passwd

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

# List active sessions
cron sessions

# Revoke session
cron revoke --session <session_id>
```## ميزات الأمان

### المصادقة
```bash
# Encrypt file
cron encrypt --input <file> --output <encrypted_file>

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

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

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

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

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

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

# Verify certificate
cron cert verify --cert <cert_file>
```### التشفير
```bash
# Monitor system resources
cron monitor --system

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

# Monitor network activity
cron monitor --network

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

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

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

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

# View monitoring history
cron history --type monitoring
```## المراقبة والتسجيل

### مراقبة النظام
```bash
# View logs
cron logs

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

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

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

# Rotate logs
cron logs --rotate

# Export logs
cron logs --export <file>

# Clear logs
cron logs --clear

# Archive logs
cron logs --archive <archive_file>
```### التسجيل
```bash
# Check if cron is installed
which cron
cron --version

# Check PATH variable
echo $PATH

# Reinstall if necessary
sudo apt reinstall cron
# or
brew reinstall cron
```## استكشاف الأخطاء وإصلاحها

### المشاكل الشائعة

**المشكلة: الأمر غير موجود**
```bash
# Run with elevated privileges
sudo cron <command>

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

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

# Check ownership
sudo chown $USER:$USER /usr/local/bin/cron
```**المشكلة: إذن مرفوض**
```bash
# Validate configuration
cron config validate

# Reset to default configuration
cron config reset

# Check configuration file location
cron config show --file

# Backup current configuration
cron config export > backup.conf

# Restore from backup
cron config import backup.conf
```**المشكلة: أخطاء في الإعداد**
```bash
# Check service status
cron status --detailed

# Check system logs
journalctl -u cron

# Start in debug mode
cron start --debug

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

# Kill conflicting processes
cron killall --force
```**المشكلة: الخدمة لا تبدأ**

| أمر | وصف |
|---------|-------------|
| `cron --debug` | تمكين مخرجات التصحيح |
| `cron --verbose` | تمكين التسجيل التفصيلي |
| `cron --trace` | تمكين التسجيل التفصيلي |
| `cron test` | تشغيل الاختبارات المدمجة |
| `cron doctor` | تشغيل فحص صحة النظام |
| `cron diagnose` | إنشاء تقرير تشخيصي |
| `cron benchmark` | قم بتشغيل اختبارات الأداء |
| `cron validate` | تحقق من التثبيت والتكوين |### أوامر التصحيح
```bash
# Set memory limit
cron --max-memory 1G <command>

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

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

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

# Clear cache
cron cache clear

# Show cache statistics
cron cache stats

# Optimize performance
cron optimize --profile <profile>

# Show performance metrics
cron metrics
```## تحسين الأداء

### إدارة الموارد
```bash
# Enable parallel processing
cron --parallel <command>

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

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

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

Integration

Scripting

#!/bin/bash
# Example script using cron

set -euo pipefail

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

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

    if cron --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"
    cron 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

متغير	وصف	الافتراضي
CRON_CONFIG	مسار ملف التكوين	~/.cron/config.yaml
CRON_HOME	المجلد الرئيسي	~/.cron
CRON_LOG_LEVEL	مستوى التسجيل	INFO
CRON_LOG_FILE	مسار ملف السجل	~/.cron/logs/cron.log
CRON_CACHE_DIR	مجلد التخزين المؤقت	~/.cron/cache
CRON_DATA_DIR	دليل البيانات	~/.cron/data
CRON_TIMEOUT	المهلة الافتراضية	30s
CRON_MAX_WORKERS	الحد الأقصى للعمال	4

Configuration File

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

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

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

Examples

Basic Workflow

# 1. Initialize cron
cron init

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

# 3. Start service
cron start

# 4. Check status
cron status

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

# 6. View results
cron results

# 7. Stop service
cron stop

Advanced Workflow

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

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

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

Automation Example

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

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

done < "$TARGETS_FILE"

# Generate summary report
cron 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 [دليل أفضل الممارسات]https://docs.example.com/cron/best-practices[دروس فيديو تعليمية]https://youtube.com/c/cron[دورات تدريبية]https://training.example.com/cron[برنامج الشهادات المهنية]https://certification.example.com/cron[أدوات ذات صلة]
  • Git - وظيفة تكميلية
  • Docker - حل بديل
  • Kubernetes - شريك التكامل

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*آخر تحديث: 2025-07-06|تحرير على GitHubhttps://github.com/perplext/1337skills/edit/main/docs/cheatsheets/cron.md)