🚀 Bash Scripts Collection

A comprehensive collection of production-ready Bash scripts for DevOps engineers, system administrators, and automation enthusiasts. These scripts handle everything from system monitoring and backups to Kubernetes management and CI/CD integrations.

📋 Table of Contents

• Overview
• Scripts
  • System Administration
  • DevOps & CI/CD
  • Monitoring & Alerting
  • Backup & Recovery
  • Container & Kubernetes
• Prerequisites
• Installation
• Usage
• Contributing
• License

🎯 Overview

This repository contains battle-tested Bash scripts designed to automate common tasks in modern infrastructure management. Whether you're managing bare-metal servers, cloud infrastructure, or containerized applications, you'll find utilities to streamline your workflow.

📜 Scripts

System Administration

Script	Description
account-expiry-notify.sh	Monitors and notifies about upcoming user account expirations
user-account-management.sh	Automates user account creation, modification, and deletion
package-updates.sh	Checks for and manages system package updates
system-resource-monitor.sh	Monitors CPU, memory, and disk usage with threshold alerts
system-monitoring.sh	Comprehensive system health monitoring script
health-check.sh	Performs system health checks and reports status
http-status.sh	Checks HTTP endpoint status and availability
monitor-open-ports.sh	Scans and monitors open network ports
process-monitor-alert.sh	Monitors specific processes and alerts on failures

DevOps & CI/CD

Script	Description
jenkins-job.sh	Triggers and manages Jenkins job executions
argo-cd-sync.sh	Synchronizes ArgoCD applications
auto-deployment.sh	Automates application deployment workflows
sonarqube-slack-notify.sh	Sends SonarQube analysis results to Slack
create-confluence-page.sh	Creates and updates Confluence documentation pages
git-repo-stats.sh	Generates comprehensive Git repository statistics

Monitoring & Alerting

Script	Description
disk-usage-monitor.sh	Monitors disk usage and sends alerts on thresholds
grafana-metrics.sh	Pushes custom metrics to Grafana
slack-notify.sh	Sends notifications to Slack channels
splunk-search.sh	Performs automated Splunk log searches
check-ssl-expiry.sh	Monitors SSL certificate expiration dates
docker-log-monitor.sh	Monitors and analyzes Docker container logs

Backup & Recovery

Script	Description
backup.sh	Performs weekly automated backups
rsync-backup.sh	Uses rsync for efficient incremental backups
scp-remote-backup.sh	Securely copies backups to remote servers
rotate-old-files.sh	Implements file rotation policies
log-rotation.sh	Manages log file rotation and archival
log-file-cleanup.sh	Cleans up old log files based on retention policies

Container & Kubernetes

Script	Description
kubectl-namespace-cleanup.sh	Cleans up unused Kubernetes namespaces
scale-deployment.sh	Scales Kubernetes deployments automatically
restart-containers.sh	Restarts Docker containers based on criteria
gc-cleanup.sh	Performs garbage collection and cleanup tasks

Utilities

Script	Description
random-password-generator.sh	Generates secure random passwords

🔧 Prerequisites

• Bash 4.0 or higher
• Standard Unix utilities (grep, awk, sed, etc.)
• Specific tools required by individual scripts:
  • kubectl for Kubernetes scripts
  • docker for container management scripts
  • curl or wget for HTTP-based scripts
  • jq for JSON parsing (some scripts)
  • rsync for backup scripts
  • API tokens/credentials for integration scripts (Jenkins, Slack, etc.)

📥 Installation

1. Clone the repository:

git clone https://github.com/wesleyscholl/bash-scripts.git
cd bash-scripts

2. Make scripts executable:

chmod +x *.sh

3. (Optional) Add scripts to your PATH:

export PATH=$PATH:$(pwd)

Or copy scripts to /usr/local/bin/:

sudo cp *.sh /usr/local/bin/

🚀 Usage

Each script includes inline documentation and usage examples. Run any script with the -h or --help flag for detailed information:

./backup.sh --help

Example: SSL Certificate Monitoring

./check-ssl-expiry.sh example.com 443

Example: Disk Usage Monitoring

./disk-usage-monitor.sh /dev/sda1 80

Example: Kubernetes Namespace Cleanup

./kubectl-namespace-cleanup.sh --dry-run

📝 Configuration

Many scripts support configuration through:

• Environment variables
• Configuration files (.conf or .env files)
• Command-line arguments

Check individual script documentation for specific configuration options.

🤝 Contributing

Contributions are welcome! Please follow these guidelines:

1. Fork the repository
2. Create a feature branch (git checkout -b feature/amazing-script)
3. Commit your changes (git commit -m 'Add amazing script')
4. Push to the branch (git push origin feature/amazing-script)
5. Open a Pull Request

Script Guidelines

• Include error handling and input validation
• Add usage documentation and examples
• Follow consistent naming conventions
• Test thoroughly before submitting
• Include comments for complex logic

🔒 Security

• Never commit sensitive credentials or tokens
• Use environment variables or secure vaults for secrets
• Review scripts before running in production
• Follow the principle of least privilege

📄 License

This project is licensed under the MIT License - see the LICENSE file for details.

🙏 Acknowledgments

• Built by @wesleyscholl with contributions from the community
• Thanks to all contributors who help improve these scripts

📞 Support

• Open an issue for bug reports
• Start a discussion for questions
• Check existing scripts for examples and patterns

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