https123456789/bensh

A shell written with my common use cases in mind.

BenSH - Ben's Shell

A shell written with my common use cases in mind.

This project was heavily inspired by indradhanush's blog post on shells and the Build Your Own X project.

Features

• Run any command on PATH.
• exit
• cd
• Find new and interesting bugs 😅

Known Bugs 🐛 🪲 🦗

• #1 Arrow Keys Combined With Backspace Can Remove Prompt

To Do

• Add shell scripting
• Add configuration files
• Add pipes and I/O redirection
• Add history command
• Add info command
• Add up and down arrow history movement
• Add left and right arrow comamnd editing
• Fix prompt bug (#1)

Design

graph TD
    A[Shell Starts] --> B(Adjust terminal settings)
    B --> C(Show prompt)
    C --> D(User types input)
    D --> E(Check for interupt)
    E -->|Interupt| F(Handle interupt)
    E -->|No Interupt| G(Validate command)
    F --> C
    G -->|Exit Command| I(Restore terminal settings)
    G -->|Cd command| K(Change working directory)
    K --> C
    I --> J(Exit)
    G -->|Valid Command| H(Fork & execute)
    G -->|Invalid Command| C
    H --> C