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Simple Shell

Overview

  • A shell is a command line interface(CLI) that allows users to interact with an Operating System(OS) by entering commands. It takes user input, interprets it, and executes the corresponding system calls to perform tasks like running programs, managing files, etc.

Features

Motivation

Building a shell is a valuable learning experience. To gain a deeper understanding of the inner workings of how the shell operates including process management, I/O handling, and interaction with the kernel (Core part of the OS).

Compilation

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

Usage

Interactive mode: ./hsh

Non-interactive mode: echo "/bin/ls" | ./hsh

Examples

  • Run shell in interactive mode:
 $ ./hsh
 #cisfun$ ls -l
 $ ./hsh
 #cisfun$ pwd
 /home/{username}/{dir}/simple_shell
 $ /hsh
 #cisfun$ echo “Hello, World!”
 “Hello, World!”
  • Run shell in non-interactive mode:
 $ echo "/bin/ls" | ./hsh
 exec.c interactive.c hsh read_line.c non_interactive.c shell.c  read_stream.c  tokenize.c
 process.c shell.h
 $ echo "pwd" | ./hsh
 /home/{username}/{dir}/simple_shell

Reference

Contributors

This project was jointly created by @SherneVK and @droffilc1