Tiny Shell (wip)

A small C program that builds shell-style command arguments from user input. Written on macOS using Clang and LLDB.

This project currently implements command parsing, basic command execution, signal handling, and core built-ins.

What it does right now

• Reads input using fgets()
• Removes the trailing newline
• Tokenizes the command line using strtok()
• Constructs an argv-style array char *my_argv[]
• Executes commands by spawning child processes with fork() and execvp()
• Supports built-in commands (cd and exit)

Example

Input: ls -l /tmp Output: Runs the ls command and prints directory contents.

Usage

To compile and run the project locally on macOS:

# Compile with Clang
clang -Wall -Wextra -g sh.c -o sh

# Run the program
./sh

Next Steps

• Process execution with fork() and execvp()
• Built-in commands (cd, exit)
• Pipelines using pipe()
• I/O redirection using dup2()
• Signal handling (SIGINT)