NEXLANGSHELL (NLS)

NEXLANGSHELL (NLS) is a simple, interactive shell script that provides basic command handling and a unique startup animation. It demonstrates how to implement a minimal command-line interface with custom commands and animations using Bash scripting.

Features

• Custom Command Handling:

  • exit: Exits the shell.
  • list: Lists files in the current directory.
  • list A: Lists all files, including hidden ones.
  • list L: Lists files with detailed information.
  • list AL or list LA: Lists all files, including hidden ones, with detailed information.
  • dir <directory>: Changes to the specified directory (e.g., dir Documents).
  • wami: Displays the current working directory.
  • Unknown commands are handled with an error message.

• Startup Animation:

  • A visually dynamic sequence that animates the shell's name.

Usage

1. Clone the repository or copy the script to your local machine.
2. Save the script as nls.sh.
3. Make the script executable:

   chmod +x nls.sh

4. Run the script:

   ./nls.sh

Commands

Command	Description
exit	Exits the shell.
list	Lists files in the current directory.
list A	Lists all files, including hidden ones.
list L	Lists files with detailed information.
list AL or list LA	Lists all files, including hidden ones, with detailed information.
dir <directory>	Changes to the specified directory. Example: dir Documents.
wami	Displays the current working directory.
Unknown commands	Displays an error message indicating the command was not found.

Code Overview

verifyprompt Function

This function processes user input and executes commands based on predefined patterns. It includes:

• Directory navigation using the dir command.
• File listing in various formats using ls.
• Current working directory display.
• Error handling for unrecognized commands.

startupmovie Function

A fun animation sequence that progressively displays and clears parts of the shell's name ("NEXLANGSHELL"). It creates a visually engaging startup experience.

Main Loop

The script continuously prompts the user for input using read, processes the input via the verifyprompt function, and repeats until the user exits.

Contributing

Feel free to fork this repository, create new features, or suggest improvements. Contributions are welcome!

License

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

Acknowledgments

• Inspired by the flexibility of Bash scripting.
• A simple demonstration of how custom command-line interfaces can be implemented.