Welcome to Exsh, A Unix like shell written in pure C. This project mimics the core behavior of Unix shells — covering command parsing, pipes, input/output redirection, process creation with fork(), and execution using execvp().
🔬 Designed for learning, OS-level process management, and understanding how real shells like Bash work.
| Shell Feature | Exsh Implementation |
|---|---|
| Interactive Prompt | Tracks command history, <C-r> search and cursor control |
| Command Execution | Runs system commands with arguments |
| Pipes | Connects output of one command to input of another |
Input/Output Redirection (>, >>, <) |
Redirects stdin/stdout to files |
| Built-in Commands | cd, exit |
| Process Management | fork(), execvp(), wait() for process control |
This project requires a Unix-like environment due to the use of fork(), execvp(), and pipes.
Windows users should use WSL (Ubuntu recommended):
```bash
sudo apt update
sudo apt install build-essential make gcc libreadline-dev
## Requirements
* libc
* gcc
* make
* libreadline (optional)
* Unix based OS
## 🔧 Build
```bash
cd src
make
./build/exsh
$ ls -l
$ cd folder
$ ls | grep txt > out.txt
$ exit
Readmore here: Exsh Blog
We ❤️ contributors!
To contribute:
- Fork the repository.
- Clone it locally:
git clone [repo] cd exsh/src git checkout -b feature/my-improvement
@Meerthika