# 🚀 Day 6 of 100 Days of DevOps – Automating System Health Reports with Bash

After learning the basics of Bash scripting (variables, loops, conditions, functions), I wanted to apply all that into something real. So for Day 6, I built a system health report automation script.

This script gives you a summary of your system: disk space, memory usage, top processes, uptime, IP, and more — all in a single command.

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🧠 What I Built

A script called automation.sh that outputs:

• 📅 Current date/time

• 🔄 Uptime

• 💽 Disk usage

• 🧠 Memory usage

• 🔥 Top CPU & Memory processes

• 👥 Logged-in users

• 🌐 IP address

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🛠️ Code Snippet: automation.sh

#!/bin/bash

echo "📅 Date and Time: $(date)"
echo "🔄 Uptime:"
uptime

echo "💽 Disk Usage:"
df -h

echo "🧠 Memory Usage:"
free -h

echo "🔥 Top CPU Processes:"
ps aux --sort=-%cpu | head -6

echo "💾 Top Memory Processes:"
ps aux --sort=-%mem | head -6

echo "👤 Logged-in Users:"
who

echo "🌐 IP Address:"
hostname -I

echo "✅ Report Complete"

📥 How to Use It

chmod +x automation.sh
./automation.sh

📂 GitHub Repository

📍 Day 6 Folder – DevOps Journal

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🧾 What I Learned

• How to automate real-world tasks with Bash

• Combining Linux commands inside functions

• Sorting processes by memory/CPU

• Using df, free, ps, who, and hostname in scripts

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🧪 Bonus: Created a Cheatsheet

I documented every command I used and its output in a Markdown file:

• ✅ Day 6 Cheatsheet on GitHub

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🔮 What’s Next

Tomorrow I’ll move into Git remotes and GitHub collaboration (Day 7), including:

• Cloning repositories

• Pushing/pulling code

• Git logs and branches

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💬 Let's Connect

If you're on a similar DevOps journey, let’s connect!

• 🔗 GitHub – ritesh355

• 💼 LinkedIn – Ritesh Singh

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#devops #linux #bash #automation #100DaysOfDevOps #learninginpublic