Rclone Sync Checker for Android & S3-Compatible Remotes

This shell script allows you to verify the synchronization between a local directory on an Android device and a remote storage (Cubbit or any S3-compatible service) using rclone.

It compares the list and size of files on both ends, and reports any that are missing or different on the remote.

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📦 Features

• Counts files and calculates total size on both local and remote storage
• Compares file names and sizes
• Detects missing or altered files on the remote
• Saves a detailed report to a .txt file
• Designed for Termux on Android, compatible with any S3 backend configured in rclone

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⚙️ Requirements

• rclone installed and configured
• Termux (for Android)
• Remote configured via rclone config (Cubbit, Amazon S3, Wasabi, etc.)

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📂 Usage

1. Configure the script:

   src="/path/to/local/files"
   dest="remote:bucket/path"
   
    Run the script: "sh sync_check.sh"
   

Check the output:

File counts and sizes on both sides

Warning if mismatches exist

Missing/mismatched files saved in:

    ~/files_missing.txt

🧪 Tested With

Cubbit (via S3-compatible backend)

Amazon S3

Wasabi

Termux on Android 15

rclone v1.65+

📌 Example Output

⏳ Scanning files...

📱 On Android: File count: 1024 Used space: 1.87 GB

☁️ On remote (S3-compatible): File count: 1010 Used space: 1.84 GB

⚠️ WARNING: File count does not match! ⚠️ WARNING: Storage usage does not match!

📋 Comparing local vs remote files (name and size)...

❌ Files present on Android but missing or different on remote:
IMG_20240504_123456.jpg|2048000
VID_20240503_223011.mp4|10485760

📄 Report saved to: /data/data/com.termux/files/home/files_missing.txt

🤝 Contributing

Feel free to submit issues or pull requests. 📄 License

This project is licensed under the MIT License.