Simple Shell Project

This repository contains a simple Unix shell implementation, developed as part of the ALX Software Engineering curriculum. The goal of this project is to build a foundational shell that executes commands, mimicking basic functionality found in standard Unix shells.

Learning Objectives

By completing this project, you will understand:

• The design and inner workings of a Unix shell
• System calls like execve, fork, wait, and exit
• Process and environment management (PID, PPID)
• Path resolution using the PATH environment variable
• Basic error handling in shell implementations

Requirements

• OS: Ubuntu 20.04 LTS
• Compiler: gcc with options -Wall -Werror -Wextra -pedantic -std=gnu89
• Code Style: Betty style guidelines (checked with betty-style.pl and betty-doc.pl)
• Functionality: Your shell must work in both interactive and non-interactive modes, matching the output of /bin/sh
• Memory: No memory leaks allowed

Compilation

gcc -Wall -Werror -Wextra -pedantic -std=gnu89 *.c -o hsh

Usage

Interactive mode

$ ./hsh
($) /bin/ls

Non-Interactive mode

$ echo "/bin/ls" | ./hsh