🐚 Bash Wrapper Shell in C

A lightweight, interactive shell implemented in C that wraps user commands by forwarding them to bash -c. It supports essential shell features like cd, command chaining, piping, redirection, background jobs, and graceful exit handling.

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📦 Features

• Interactive prompt with customizable color
• Built-in cd command
• Support for pipes (|), redirection (>, <), and command chaining with semicolons (;)
• Handling of quoted strings and background jobs (&)
• Graceful handling of Ctrl+D (EOF) and clean shell termination
• Modular, maintainable C codebase

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🗂️ File Structure

.
├── main.c            # Main input loop and shell initialization
├── executor.c        # Command execution logic
├── parser.c          # Input parsing and tokenization
├── helper.c          # Utility functions for strings and tokens
├── init.c            # Shell initialization and terminal settings
├── include/          # Header files for modularity
│   ├── executor.h
│   ├── parser.h
│   ├── helper.h
│   └── init.h

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🔧 Build and Run

gcc main.c executor.c parser.c helper.c init.c -o myshell
./myshell

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🧪 Tested Features

• Execution of external commands and built-ins like cd
• Command pipelines and chaining
• Input/output redirection
• Background job execution
• Handling of environment variables within single command context
• Robustness against invalid commands, multiple spaces, empty input, and EOF

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📌 Notes and Limitations

• Environment variables do not persist between separate commands since each runs in its own subprocess.
• No job control beyond background execution (&).
• Does not currently support scripting or shell expansions beyond what Bash provides in the wrapped commands.

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🚀 Project Overview

This project demonstrates core shell functionalities through a C implementation that leverages Bash for command execution, enabling quick, clean, and extensible shell behavior.

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Future

Will be de-wrapped soon!