Updated script to fix issues in put command

Dynamic_DNS/Dynamic_DNS_Cloudflare/README.md

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+# 🔁 Dynamic DNS Updater for Cloudflare with Mullvad IP
+
+This script updates A records in Cloudflare with your current public IP as reported by [Mullvad](https://mullvad.net)'s IP check service. It supports:
+
+- Multiple domains/zones via `.env` files
+- Secure API access using **Cloudflare API Tokens**
+- Smart updates: only changes DNS if your IP has changed
+- Daily logging to `./logs/`
+
+---
+
+## 🚀 Features
+
+- ✅ Fetches current public IP from Mullvad API (`https://ipv4.am.i.mullvad.net/json`)
+- ✅ Uses `.env` files to manage multiple Cloudflare DNS records
+- ✅ Supports **API Tokens** (safer than global keys)
+- ✅ Skips unnecessary updates if IP hasn't changed
+- ✅ Logs every run to `logs/update_YYYY-MM-DD.log`
+
+---
+
+## 📁 Project Structure
+```
+.
+├── update_cloudflare_ip.sh # Main script
+├── zones/ # Folder for per-domain config files
+│ ├── example_com.env
+│ └── another_domain.env
+└── logs/ # Auto-created daily log files
+  └── update_2025-10-05.log
+```
+
+
+---
+
+## ⚙️ Configuration
+
+1. Create a `zones/` folder (already included in repo).
+2. Add one `.env` file per domain/zone, named descriptively. Example:
+
+### `zones/subdomain.domain.com.env`
+
+```
+ZONE_ID="your_cloudflare_zone_id"
+DNS_RECORD_ID="your_dns_record_id"
+CLOUDFLARE_API_TOKEN="your_cloudflare_api_token"
+DNS_NAME="subdomain.domain.com"
+```
+
+---
+
+## ✅ Use Cloudflare API Tokens with permission:
+Zone → DNS → Edit for the required zone.
+
+🧪 Usage
+
+Make the script executable:
+```
+chmod +x update_cloudflare_ip.sh
+```
+
+Run it manually:
+```
+./update_cloudflare_ip.sh
+```
+
+Check logs:
+```
+cat logs/update_$(date +%F).log
+```
+
+---
+
+## 🕒 Automation (Cron Example)
+
+To run the script every 10 minutes, edit your crontab:
+```
+crontab -e
+```
+
+Add this line:
+```
+*/10 * * * * /path/to/update_cloudflare_ip.sh >> /dev/null 2>&1
+
+```
+
+Or, if you want to keep logs automatically:
+```
+*/10 * * * * /path/to/update_cloudflare_ip.sh >> /path/to/logs/cron.log 2>&1
+```
+
+---
+
+## ✅ Requirements
+
+* bash (scripted for Linux/macOS)
+* curl
+* jq (lightweight and flexible command-line JSON processor): https://github.com/jqlang/jq
+
+Install jq if missing:
+```
+# Debian/Ubuntu
+sudo apt install jq
+
+# macOS (Homebrew)
+brew install jq
+```
+
+---
+
+## 🔐 Security Tip
+
+Never share your .env files or commit them to public repositories. They contain sensitive credentials.
+
+Use .gitignore to ignore your secrets:
+
+.gitignore
+```
+zones/*.env
+logs/
+```
+
+---
+
+## 🙋 FAQ
+
+Q: What happens if the IP hasn't changed?
+A: The script detects it and skips the update.
+
+Q: What if one domain fails?
+A: The script continues to process the remaining .env files.
+
+Q: Can I use IPv6?
+A: Not currently. This script uses Mullvad's IPv4 API. IPv6 support can be added if needed.