rsh - A Simple Shell in C

Welcome to rsh, a simple shell program written in C for UNIX-based systems. rsh provides basic shell functionalities with built-in commands like cd, help, and exit.

Note: This shell program will not work on Windows systems due to its dependence on Unix system calls and libraries.

Table of Contents

• About
• Features
• Installation
• Usage
• Built-in Commands
• Examples

About

rsh is a minimalistic shell created to help users understand and experiment with shell basics. This project includes essential features and built-in commands, aiming to provide a foundation for further shell development.

Features

• Built-in Commands: Support for essential commands like cd, help, and exit.
• Command Execution: Execute both built-in and external commands.
• Error Handling: Basic error handling for invalid commands and parameters.

Installation

To install and use rsh on your UNIX-based system, follow these steps:

1. Clone the repository:

   git clone https://github.com/rushiljalal/rsh.git

2. Navigate to the project directory:

   cd rsh

3. Compile the code:

   gcc -o rsh rsh.c

4. Run rsh:

   ./rsh

Usage

Once rsh is running, you can enter commands at the prompt. rsh will recognize both built-in and external commands, providing a basic interactive shell experience.

rsh> <command>

Built-in Commands

rsh includes the following built-in commands:

• cd: Change the current directory.

  • Usage: cd <directory>

• help: Display a list of available built-in commands and their usage.

  • Usage: help

• exit: Exit the shell.

  • Usage: exit

Examples

rsh> cd /home/user
rsh> help
rsh> ls -la
rsh> exit