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🛠️ User Management Shell Script Project

This project is a bash-based user management system created as part of a shell scripting course. It provides a menu-driven interface for managing users on a Linux system and includes error handling and permission checks.

📋 Features

The script supports the following user management operations:

  1. Show System Information
  2. List Users with /bin/bash Shell
  3. Search for a User
  4. Add a New User
  5. Delete a User (with Home Directory Backup)
  6. Show User Details
  7. Change User Password
  8. Lock a User Account
  9. Unlock a User Account
  10. Exit the Program

Each operation is handled through individual functions for modularity and clarity.

🔄 Menu

  • The menu reappears after each operation.
  • Users can interactively choose actions from the list.

⚠️ Error Handling

The script includes handling for the following edge cases:

  • Invalid input detection
  • User existence verification
  • Backup directory validation
  • Permission checks (sudo/root requirement)

🧱 Project Structure

usersManagementSystem/ │ ├── usermanag.sh # Main interactive script ├── manage_functions.sh # All function definitions ├── README.md # Project documentation ├── project_nustructions.png # Project Instructions

🔐 Requirements

  • Must be run as root (UID 0)
  • Bash shell environment (tested on Ubuntu)
  • Mail utils installed for future enhancements (e.g., user notifications)

🚀 How to Run

  1. Clone the repository: git clone https://github.com/yourusername/user-management.git cd user-management Make the scripts executable: chmod +x main.sh user_functions.sh Run the main script with root privileges: sudo ./main.sh

✅ Sample Output

     User Management System
  1. Show System Information
  2. List Users with /bin/bash Shell
  3. Search for a User ...
  4. Exit

Enter your choice [1-10]: 📌 Notes Backup files will be stored in a backup/ directory inside the script folder (can be changed).

Ensure proper permissions and disk space for user backups.

📄 License This project is provided as-is for educational purposes. Feel free to fork and improve it!