simple_shell

A small UNIX command-line interpreter written in C, modelled on sh. Built as a pair project with Ebube Ochemba during the ALX Software Engineering program.

What it does

• Shows a prompt and reads commands in a loop, in interactive mode or from a pipe (echo "ls -l" | ./hsh)
• Splits each line into the command and its arguments
• Searches the PATH environment variable to find the program, then runs it with fork and execve and waits for it to finish
• Handles the exit and env built-ins
• Prints an error when a command isn't found

Files

File	What it does
main.c	Prompt loop and exit handling
token_handling.c	Splits input into arguments
find_path.c	Resolves a command through PATH
executing.c	fork / execve / wait
builtin.c	Built-in commands
enviroment.c	Environment variable helpers
functions1.c, functions2.c	Our own string functions (_strcmp etc.), since the project limited which standard library calls we could use

Build and run

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

Authors

See AUTHORS.