Uptime Controller

A simple Bash script that monitors website uptime by continuously checking the availability of a specified website and providing detailed statistics.

Features

• Real-time Monitoring: Continuously monitors website availability
• Customizable Sleep Interval: User can specify check frequency (default: 5 seconds)
• Status Tracking: Counts online and offline occurrences
• Runtime Tracking: Shows total monitoring duration in hours, minutes, and seconds
• Color-coded Output: Green for online count, red for offline count
• Graceful Reporting: Press Ctrl+C to generate a summary report
• Error Code Display: Shows curl error codes for debugging offline issues
• Simple Interface: Easy-to-use command-line interface

How It Works

The script uses curl to send HEAD requests to the specified website:

• Online: When curl returns status code 0 (success)
• Offline: When curl returns any non-zero status code (with error code displayed)
• Monitoring Loop: Continuously checks at specified intervals
• Signal Handling: Intercepts Ctrl+C to display final report

Installation

Download the Script

You can download the script directly using curl or wget:

# Using curl
curl -O https://raw.githubusercontent.com/06ergin06/uptime_controller/main/script.sh

# Using wget
wget https://raw.githubusercontent.com/06ergin06/uptime_controller/main/script.sh

# Or clone the entire repository
git clone https://github.com/06ergin06/uptime_controller.git
cd uptime_controller

Usage

Make the script executable and run it:

chmod +x script.sh
./script.sh <website_url> [sleep_interval]

Parameters

• <website_url> (required): The website URL to monitor (e.g., https://google.com)
• [sleep_interval] (optional): Time in seconds between checks (default: 5 seconds)

Examples

# Monitor Google with default 5-second intervals
./script.sh https://google.com

# Monitor GitHub with 10-second intervals
./script.sh https://github.com 10

# Monitor a local server with 2-second intervals
./script.sh http://localhost:3000 2

Sample Output

./script.sh https://google.com
Welcome to uptime controller
https://google.com
ONLINE
ONLINE
ONLINE
OFFLINE (Error code : 6)
ONLINE
^C
-------- Uptime Report https://google.com : --------
Online count : 4
Offline count : 1
Total runtime : 0 hours, 0 minutes, 25 seconds

./script.sh https://example.com 10
Welcome to uptime controller
https://example.com
ONLINE
ONLINE
ONLINE
^C
-------- Uptime Report https://example.com : --------
Online count : 3
Offline count : 0
Total runtime : 0 hours, 0 minutes, 30 seconds