FSH (Flex Shell)

FSH is a custom-built Linux shell written in C++ designed to offer a flexible, lightweight, and expandable command-line interface. This project marks my initial journey into understanding shell internals, process management, and system programming, with many more features planned for the future.

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🚀 Current Features

• Basic Command Execution:
  Run standard Linux commands like ls, pwd, echo, etc.

• Argument Handling:
  Parse and manage command-line arguments for robust command execution.

• Built-In Commands:

  • exit: Terminate the shell.
  • cd <directory>: Change the current working directory.
  • history: Display a list of previously executed commands.

• Process Management:
  Leverage fork() and execvp() for command execution in separate processes.

• Real-Time Clock:
  Display the current time in the shell prompt.

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🔮 Planned Features

• Environment Variable Support:
  Manage and export environment variables.

• Input/Output Redirection:
  Support redirection operators like > and <.

• Piped Commands:
  Enable command chaining with pipes (|).

• Background Execution:
  Execute commands in the background using &.

• Tab-Based Auto-Completion:
  Enhance usability with command and file name auto-completion.

• Additional Enhancements:
  Continuous improvements and refinements as I dive deeper into shell programming.

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🛠 Installation

Prerequisites

• GCC/G++ Compiler:
  Required to build the project.

• Linux Operating System:
  Full compatibility and best performance are achieved on Linux.

Installation Steps

1. Clone the Repository:

   git clone https://github.com/abdullah4tech/fsh.git
   cd fsh

2. Compile the Shell:

   g++ fsh.cpp -o fsh

3. Run FSH:

   ./fsh

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🤝 Contributing

Contributions are welcome! If you have ideas, fixes, or improvements, feel free to fork the repository, create a branch, and submit a pull request. Your input helps make FSH even better.

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📜 License

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

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