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Java Command Line Interface (CLI)

A Java-based command-line interface that implements common Unix/Linux commands. This project provides a simple and extensible CLI framework with support for basic file system operations and command chaining.

Features

System Commands

  • pwd - Print current working directory
  • cd <directory> - Change directory
  • echo - Print arguments
  • ls - List directory contents
    • ls -a - List including hidden files
    • ls -r - List in reverse order
  • mkdir <dirName> - Create new directory
  • rmdir <dirName> - Remove directory
  • touch <fileName> - Create empty file
  • mv <src> <dest> - Move or rename file
  • rm <fileName> - Remove file
  • cat <fileName> - Display file contents

File Operations

  • > <fileName> - Redirect output to file (overwrite)
  • >> <fileName> - Append output to file
  • | - Pipe command output to another command

Internal Commands

  • exit - Exit the CLI
  • help - Display help message

Project Structure

  • src/ - Source code directory
    • main/ - Main application code
      • commands/ - Command implementations
      • fileSystem/ - File system management
      • executor/ - Command execution logic
      • parser/ - Command parsing logic
    • test/ - Unit tests
  • lib/ - External dependencies
  • bin/ - Compiled output files

Getting Started

Prerequisites

  • Java Development Kit (JDK) 8 or higher
  • Visual Studio Code with Java extensions

Setup

  1. Clone the repository
  2. Open the project in Visual Studio Code
  3. Ensure Java extensions are installed
  4. Build the project using the integrated build tools

Running the Application

  1. Navigate to the project directory
  2. Run the main class: