Backup Scripts

Creating automated backup procedures for critical data

Backup Scripts

Scenario: Developer Data Backup Automation

Company: xFusionCorp Industries
Task: Create automated backup for developer data

---

🧠 Backup Strategy Fundamentals

Every system needs reliable backups. A good backup strategy includes:

The 3-2-1 Rule

• 3 copies of data
• 2 different storage types
• 1 offsite location

Backup Types

Type	Description	Frequency
Full	Complete backup	Weekly
Incremental	Changes since last backup	Daily
Differential	Changes since last full	Daily

---

🛠️ Implementation

Step 1: Create Backup Directory

mkdir -p /backup
chmod 700 /backup

Step 2: Create Backup Script

#!/bin/bash
# backup.sh

DATE=$(date +%Y%m%d_%H%M%S)
SOURCE="/home/developer"
DEST="/backup/developer_$DATE.tar.gz"

# Create backup
tar -czf $DEST $SOURCE

# Verify
if [ $? -eq 0 ]; then
    echo "Backup successful: $DEST"
else
    echo "Backup failed"
    exit 1
fi

Step 3: Make Executable and Test

chmod +x backup.sh
./backup.sh

---

✅ Verification

• Backup script created
• Script is executable
• Backup file created
• Backup contains expected files
• Restoration test passes

---

🎯 Key Learnings

• Backup automation
• Tar compression
• Error handling
• Cron integration

---

✅ Status

COMPLETED 🎉

• Date: 2026-01-31

---

← Back to Foundations