Shell-Scripting

"A collection of essential shell scripts for automation, system administration, and DevOps tasks. 🚀 Learning and documenting shell scripting step by step!"

This repository contains a collection of Shell Scripts for automation, system administration, and DevOps tasks.
Each script is documented with its purpose, usage, and how it works.

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📂 Scripts Included

🧹 File Management & Cleanup

• cleanup_logs.sh – Automatically removes old log files.
• backup.sh – Creates automatic backups.
• file_manipulation.sh – Demonstrates sed and awk for file manipulation.

⏳ Scheduling & Automation

• cron_scheduler.sh – Sets up and manages cron jobs.
• set_permissions.sh – Sets correct file permissions.
• user_mgmt.sh – Creates users and manages groups.
• setup_ssh.sh – Configures SSH keys for secure login.

📊 Monitoring & Management

• disk_usage.sh – Monitors disk space usage.
• uptime_check.sh – Checks server uptime.
• monitor_resources.sh – Monitors CPU and RAM usage.
• process_manager.sh – Manages system processes (view, search, kill).
• resource_alert.sh – Monitors CPU, RAM, and Disk usage. Sends alerts if the usage exceeds specified thresholds.
• memory_cleaner.sh – Free up memory by clearing caches and swap space.

🛠️ Development Practice

• hello.sh – Your first Bash script.
• variables.sh – Demonstrates the use of variables.
• conditions.sh – Uses if-else conditions.
• loops.sh – Simple for and while loop examples.
• functions.sh – Demonstrates Bash functions.
• error_handling.sh – Error management using traps.
• logging.sh – Logs script execution for better debugging.

🌐 Networking & Security

• networking_basics.sh – Perform basic networking tasks like checking IP, pinging, and DNS lookups.
• dns_checker.sh – Check DNS resolution using nslookup and dig.
• update_hostname.sh – Update system hostname both temporarily and permanently.
• firewall_manager.sh – Automates firewall rule management using iptables.
• ssh_manager.sh – Automates SSH management tasks like server connection, SSH key copying, and connection testing.

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🚀 How to Use the Scripts

1️⃣ Clone the Repository

git clone https://github.com/AnugrahMassey/Shell-Scripting.git
cd shell-scripting

2️⃣ Make Scripts Executable

chmod +x script_name.sh

3️⃣ Run a Script

./script_name.sh

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📢 Contributions & Feedback

📌 If you have script suggestions or improvements, feel free to create a pull request or open an issue! 😊

📌 Follow my DevOps journey as I learn and document my progress in this repository.

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📜 License

📜 This project is open-source under the MIT License – feel free to use and modify the scripts!

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Happy scripting! 😊