Linux Automation Scripts

A collection of production-ready Linux Shell scripts for system administration, Kubernetes cluster deployment, server provisioning, monitoring, automation, and backup management.

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About

This repository contains a collection of Linux automation scripts designed to simplify day-to-day DevOps, Cloud, and System Administration tasks.

The scripts are organized into multiple categories including:

• Backup Automation
• Kubernetes Cluster Deployment
• Docker Installation
• Apache Installation
• Linux Monitoring
• Server Administration

These scripts are suitable for:

• Linux Administrators
• DevOps Engineers
• Cloud Engineers
• Students and Learners
• System Engineers

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Repository Structure

scripting/
│
├── backup-file/
│   ├── daily-backup.sh
│   ├── weekly-backup.sh
│   ├── monthly-backup.sh
│   └── yearly-backup.sh
│
├── kubernetes-file/
│   ├── common.sh
│   └── master.sh
│
├── installing-file/
│   ├── install-apache-webserver.sh
│   └── install-docker.sh
│
├── monitoring-file/
│   ├── cpu-monitor.sh
│   ├── memory-monitor.sh
│   └── disk-monitor.sh
│
└── README.md

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Available Scripts

Backup Scripts

Script	Description
daily-backup.sh	Creates daily compressed backups and manages retention automatically.
weekly-backup.sh	Creates weekly backup archives and removes expired backups.
monthly-backup.sh	Creates monthly backup archives for long-term storage.
yearly-backup.sh	Creates yearly backup archives for disaster recovery purposes.

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Kubernetes Scripts

Script	Description
common.sh	Common Kubernetes setup for Master and Worker Nodes. Installs CRI-O, kubeadm, kubelet, and kubectl.
master.sh	Initializes Kubernetes Control Plane and installs Calico networking.

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Installation Scripts

Script	Description
install-apache-webserver.sh	Installs and configures Apache Web Server.
install-docker.sh	Installs Docker Engine, Docker CLI, Containerd, and Docker Compose Plugin.

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Monitoring Scripts

Script	Description
cpu-monitor.sh	Displays CPU utilization and top CPU-consuming processes.
memory-monitor.sh	Displays memory utilization and top memory-consuming processes.
disk-monitor.sh	Displays disk usage and alerts when partitions exceed threshold limits.

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Requirements

Before running any script, ensure the following requirements are met:

• Linux Operating System
• Bash Shell
• Root or Sudo Privileges
• Internet Connectivity
• Git Installed
• tar Package Installed

Verify:

bash --version
git --version
tar --version

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Installation

Clone Repository

git clone https://github.com/aadityapalsagwan/Shell-Python-Script-Files-For-Linux.git

Move into repository:

cd Shell-Python-Script-Files-For-Linux

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Usage

Make Script Executable

Example:

chmod +x backup-file/monthly-backup.sh

or

chmod +x installing-file/install-docker.sh

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Run Script

Example:

./backup-file/monthly-backup.sh

or

sudo ./installing-file/install-docker.sh

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Kubernetes Cluster Deployment

Step 1: Run Common Setup On All Nodes

Execute on:

• Master Node
• Worker Node(s)

chmod +x kubernetes-file/common.sh

sudo ./kubernetes-file/common.sh

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Step 2: Initialize Master Node

Execute only on Master Node:

chmod +x kubernetes-file/master.sh

sudo ./kubernetes-file/master.sh

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Step 3: Join Worker Nodes

Run the generated join command on Worker Nodes:

sudo kubeadm join <MASTER-IP>:6443 \
--token <TOKEN> \
--discovery-token-ca-cert-hash sha256:<HASH>

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Docker Installation

Install Docker Engine:

chmod +x installing-file/install-docker.sh

sudo ./installing-file/install-docker.sh

Verify:

docker --version

docker compose version

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Backup Script Configuration

Edit the backup source directories inside the backup scripts:

BACKUP_SOURCES=(
    "/var/www/html"
    "/etc"
    "/home"
)

Add or remove directories according to your environment.

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Backup Output Structure

/backup
│
├── daily/
├── weekly/
├── monthly/
└── yearly/

Example:

server01_monthly_2026-05.tar.gz

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Cron Job Examples

Daily Backup

59 23 * * * /path/to/daily-backup.sh

Weekly Backup

55 23 * * 0 /path/to/weekly-backup.sh

Monthly Backup

50 23 28-31 * * [ "$(date +\%d -d tomorrow)" = "01" ] && /path/to/monthly-backup.sh

Yearly Backup

45 23 31 12 * /path/to/yearly-backup.sh

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Features

• Production Ready Scripts
• Kubernetes Cluster Automation
• Docker Installation Automation
• Apache Web Server Installation
• Automated Backup Management
• Backup Retention Policy
• Linux Monitoring Utilities
• Easy Customization
• Beginner Friendly
• Cloud and DevOps Focused
• Cron Compatible
• Lightweight Scripts

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Future Enhancements

Planned additions:

• Nginx Installation Script
• Jenkins Installation Script
• Terraform Installation Script
• MySQL Backup Script
• PostgreSQL Backup Script
• AWS CLI Installation Script
• AWS S3 Backup Integration
• Email Alerting
• Slack Notifications
• Backup Encryption

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Author

Aaditya Pal

Cloud Engineer | Linux Administrator | AWS Enthusiast

GitHub: https://github.com/aadityapalsagwan

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License

This project is open-source and free to use for learning, development, testing, and production environments.