MyBash - DevOps Automation Toolkit

A comprehensive collection of Bash scripts for automating system administration, development environment setup, and server management tasks on Linux/Ubuntu/WSL2 systems.

🚀 Quick Start

cd ~
mkdir -p mybash
cd mybash
git clone git@github.com:khaizinam/devop-tools.git .

sudo bash app_ui.sh

Note: Scripts require root privileges. If you're already logged in as root, you can run without sudo:

bash app_ui.sh

📸 Screenshot

📋 Available Scripts

🛠️ System Setup & Environment

Ubuntu Environment (install-ubuntu-environment.sh)

Description: Setup Ubuntu development environment with essential tools

A comprehensive menu-driven installer that provides the following options:

• Install All - Install all packages in one go
• Install Nginx (Remove Apache2) - Install Nginx web server and remove Apache2 if present
• Install and Configure UFW - Install UFW firewall and configure default ports (SSH, HTTP, HTTPS) with option to add custom ports
• Install OpenSSH - Install and enable OpenSSH server
• Install Zsh and Oh My Zsh - Install Zsh shell with Oh My Zsh framework (bira theme)
• Install Essential Packages - Install curl, wget, nano
• Install Docker - Install Docker Engine and Docker Compose with automatic OS detection (Debian/Ubuntu)
• Install Snakeoil SSL Certificate - Install self-signed SSL certificate for local development
• Install Certbot (Let's Encrypt) - Install Certbot for managing SSL certificates from Let's Encrypt
• Install Git - Install Git with optional global configuration (username, email, pull.rebase)
• Install Node.js (NVM) - Install Node.js using NVM with option to install yarn and pm2

Features:

• Interactive menu with arrow key navigation
• Reinstall prompts for already installed packages
• Automatic repository fixes (removes broken Cloudflare repo)
• Color-coded output for better readability

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🌐 Web Server

Nginx Setup (nginx-setup.sh)

Description: Configure and setup Nginx web server with PHP support

Manages Nginx site configurations with the following features:

• Create New Project - Create a new Nginx site configuration

  • Supports PHP projects (with version selection, default 8.2)
  • Supports static HTML projects
  • Optional Git repository cloning
  • Custom root directory configuration (/public_html or /public for Laravel)

• List Projects - Display all saved project configurations

• Rebuild from Config - Recreate Nginx site from existing configuration file

• Delete Project - Remove project directory, Nginx config, and clean up

Configuration:

• Configurations are stored in ./storage/config/ directory
• Each project has its own .conf file with all settings
• Automatic SSL certificate setup (snakeoil)
• Automatic /etc/hosts entry creation

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🔐 SSH Management

SSH Remote Connection (ssh-remote-server.sh)

Description: Connect to remote server via SSH with saved configurations

Interactive SSH connection manager with scrollable menu:

• Connection Management:

  • List all saved SSH configurations
  • Connect to server with saved credentials
  • Edit configuration files (nano/vi)
  • Delete configurations with confirmation

• Features:

  • Scrollable menu with up to 50 visible items
  • Arrow key navigation + number input for quick selection
  • Password-based authentication with sshpass
  • Auto-install sshpass if not available
  • Edit config files with your preferred editor

Storage:

• Configurations stored in ./ssh_config/ directory
• Format: USER-HOST.conf containing USER, HOST, PORT, PASS

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SSH Key Manager (ssh-add-idrsa-key.sh)

Description: Add SSH public key to remote server for passwordless login

Manages SSH key distribution to remote servers:

• Key Management:

  • Select from saved SSH public keys
  • Create new SSH public key
  • Upload selected key to remote server

• Configuration Actions:

  • Add to Server - Upload SSH key to selected server
  • Edit - Edit server configuration (nano/vi)
  • Delete - Remove server configuration
  • Back to Menu - Return to main menu

Features:

• Connection testing before key upload
• Automatic ~/.ssh/authorized_keys management
• Duplicate key detection
• Clear success/error messages

Storage:

• SSH keys stored in ./ssh_rsa/ directory
• Configurations stored in ./ssh_config/ directory

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SSH WSL Setup (ssh-setting-wsl.sh)

Description: Configure SSH settings and keys for Windows Subsystem for Linux

Sets up SSH environment for WSL:

• SSH Agent Management:

  • Check if SSH agent is running
  • Start SSH agent if not running
  • Persist agent settings in .bashrc and .zshrc

• Key Management:

  • Copy SSH keys from ./ssh/ to ~/.ssh/
  • Set correct file permissions (700 for .ssh, 600 for private keys)
  • Add private key to SSH agent
  • Clear existing keys before adding new ones

Usage:

• Run from directory containing .ssh/ folder
• Automatically handles agent lifecycle
• Ensures proper permissions for SSH files

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🧹 System Maintenance

Clean Temporary (clean-temporary.sh)

Description: Clear temporary files and system logs to free up disk space

Comprehensive cleanup tool:

• Temporary Files:

  • Cleans all files in /tmp directory
  • Shows before/after file count
  • Safe removal with error handling

• System Logs:

  • Removes log files older than 7 days from /var/log
  • Shows total space occupied before cleanup
  • Displays space recovered after cleanup
  • Lists all deleted files with sizes

Features:

• Color-coded progress indicators
• Detailed statistics
• Safe operation (only old logs removed)

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💾 System Configuration

Swap File Creator (system-make-swapfile.sh)

Description: Create and configure swap file for system memory

Creates swap files to extend available memory:

• Prompts for swap file size
• Creates swap file at /swapfile
• Sets correct permissions (600)
• Formats as swap
• Enables swap immediately
• Adds to /etc/fstab for persistence

Note: Requires root privileges for swap operations.

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Navicat Trial Reset (system-reset-trial-navicat.sh)

Description: Reset Navicat trial period to extend usage time

Resets Navicat Premium trial period by removing registry entries:

• Removes Navicat registry keys
• Clears application data
• Extends trial period

Platform: Windows/WSL (uses Windows registry commands)

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🎨 User Interface

The toolkit features a modern, interactive UI system:

Navigation

• Arrow Keys (↑↓) - Navigate through menu options
• Enter - Select highlighted option
• Number Keys (0-9) - Quick jump to option by number
• Q - Quit/Exit
• Ctrl+C - Graceful exit with cleanup

Features

• Color-coded output for better readability
• Scrollable menus (up to 50 visible items)
• Input buffering for numeric selection
• Real-time menu updates
• Graceful error handling

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📁 Project Structure

mybash/
├── app_ui.sh              # Main interactive script manager
├── README.md              # This file
├── run/                   # Executable scripts
│   ├── clean-temporary.sh
│   ├── install-ubuntu-environment.sh
│   ├── nginx-setup.sh
│   ├── ssh-add-idrsa-key.sh
│   ├── ssh-remote-server.sh
│   ├── ssh-setting-wsl.sh
│   ├── system-make-swapfile.sh
│   └── system-reset-trial-navicat.sh
├── src/
│   ├── services/          # Modular service functions
│   │   ├── common.sh
│   │   ├── install-nginx.sh
│   │   ├── install-ufw.sh
│   │   ├── install-openssh.sh
│   │   ├── install-zsh.sh
│   │   ├── install-essential-packages.sh
│   │   ├── install-docker.sh
│   │   ├── install-snakeoil-cert.sh
│   │   ├── install-certbot.sh
│   │   ├── install-git.sh
│   │   ├── install-node.sh
│   │   ├── clean-tmp.sh
│   │   ├── clean-log.sh
│   │   └── init-nginx.sh
│   └── ui/                # UI components
│       ├── ui_common.sh   # Common UI functions and colors
│       └── scroll_menu.sh # Scrollable menu component
├── config/                # Nginx site configurations
├── ssh_config/            # SSH server configurations
└── ssh_rsa/               # SSH public keys

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🔧 Requirements

• Operating System: Linux (Debian/Ubuntu recommended), WSL2
• Privileges: Root/sudo access
• Package Manager: apt-get (Debian/Ubuntu), yum/dnf/pacman (other distros)
• Dependencies:
  • nano or vi (auto-installed by app_ui.sh)
  • sshpass (auto-installed when needed)
  • curl, wget (installed via Ubuntu Environment script)

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📝 Script Metadata

All scripts support metadata variables:

• NAME - Display name for the script
• DESC - Description shown in menu

Example:

NAME="My Script"
DESC="This script does amazing things"

If metadata is not present, the script filename (without extension) is used as the name.

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🛡️ Security Notes

• Scripts require root privileges for system modifications
• SSH passwords are stored in plain text configuration files (use with caution)
• Always review scripts before execution
• SSH keys should have proper permissions (600 for private, 644 for public)
• UFW firewall rules should be configured carefully to avoid locking yourself out

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🐛 Troubleshooting

Script not found

• Ensure you're running from the project root directory
• Check that scripts in run/ have execute permissions: chmod +x run/*.sh

Permission denied

• Run with sudo: sudo bash app_ui.sh
• Ensure you have root/sudo privileges

Package installation fails

• Check internet connection
• Verify package manager is working: apt-get update
• Some scripts auto-fix broken repositories (e.g., Cloudflare 404 errors)

SSH connection issues

• Verify SSH agent is running: ssh-add -l
• Check SSH key permissions: ls -la ~/.ssh/
• Test connection manually: ssh user@host

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📄 License

This project is for personal use and system administration automation.

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👤 Author

Khaizinam - DevOps Automation Toolkit

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Last Updated: 2024