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+Here's a concise reference guide for using `curl` to retrieve public IP and device information through various online services. This guide also includes some advanced use cases for integrating these commands into broader workflows.
+
+### Basic Commands
+
+#### **Get Public IP Address**
+- **Plain IP Address**: 
+  - Command: `curl ifconfig.me`
+  - Output: Just your public IP address in plain text.
+- **Detailed IP and Connection Info**:
+  - Command: `curl ipinfo.io/json`
+  - Output: JSON-formatted details including IP, location, ISP, and more.
+
+#### **Alternative Services**
+- **Icanhazip**:
+  - Command: `curl icanhazip.com`
+  - Description: Returns the IP address in plain text.
+- **Ifconfig.co**:
+  - Command: `curl ifconfig.co/json`
+  - Description: Provides detailed JSON output similar to ipinfo.io.
+
+### Advanced Use Cases
+
+#### **1. Logging IP Changes**
+Track changes in your public IP address over time, useful for dynamic IP users:
+```bash
+#!/bin/bash
+CURRENT_IP=$(curl -s ifconfig.me)
+LOG_FILE="ip_change_log.txt"
+
+if [ ! -f $LOG_FILE ]; then
+    echo "Starting IP: $CURRENT_IP" > $LOG_FILE
+fi
+
+LAST_IP=$(tail -n 1 $LOG_FILE | cut -d ' ' -f 3)
+
+if [ "$CURRENT_IP" != "$LAST_IP" ]; then
+    echo "$(date): IP changed to $CURRENT_IP" >> $LOG_FILE
+fi
+```
+
+#### **2. Conditional Actions Based on IP Location**
+Perform actions based on the geographical location of your IP:
+```bash
+#!/bin/bash
+IP_INFO=$(curl -s ipinfo.io/json)
+COUNTRY=$(echo $IP_INFO | jq -r '.country')
+
+if [ "$COUNTRY" == "US" ]; then
+    echo "Execute tasks specific to US"
+    # Add commands here
+else
+    echo "Outside US: actions taken will differ"
+    # Different commands here
+fi
+```
+
+#### **3. Combining IP Data with Network Diagnostics**
+Combine IP information retrieval with local network diagnostics for comprehensive reports:
+```bash
+#!/bin/bash
+echo "Gathering Network Info..."
+PUBLIC_IP=$(curl -s ifconfig.me)
+PING_RESULT=$(ping -c 4 example.com)
+
+echo "Public IP: $PUBLIC_IP"
+echo "Ping Test Results:"
+echo "$PING_RESULT"
+```
+
+#### **4. Scheduled IP Check with Notifications**
+Use `cron` to schedule regular IP checks and send notifications if the IP changes (Linux):
+```bash
+# Add this script to cron jobs (crontab -e)
+* */6 * * * /path/to/ip_check_script.sh
+```
+The script could use system notifications or email to alert you to changes.
+
+### Considerations
+
+- **Privacy**: Be cautious with how and where you use these services, as you are revealing your IP to them.
+- **Rate Limiting**: Frequent requests to these services may be rate-limited. Use responsibly.
+- **Dependence on External Services**: These commands depend on external websites, which might change their output format or availability.
+
+This guide should serve as a comprehensive starting point for both basic and advanced usage of `curl` for IP and network-related tasks. Adjust and expand based on your specific requirements and environment.
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