Minishell

A mini recreation of bash. Implementing previously learned concepts like file descriptors and processes. Made with Pedro Mota.

Table of Contents

• The Challenge
  • What Is Bash and How Does It Work?
• Implementation
  • The Lexer
  • The Parser
  • Builtins
  • Executor
    • Expander
    • Heredoc
    • Single Command
    • Multiple Commands
  • Reset
• My Take Away
• Installation

The Challange

This is definitly one of the best/worst project I've ever made, and It wasn't just me, This project in group. The main task of this Minishell is to replicate the terminal unix based Bash. Do not get wronge with the name 'Mini' that mean all the possibility of bash running scripts etc... Your task is to make a unix terminal to be able running basic commands, such ls, cat, wc including some builtins echo, pwd, unset, env, cd ... including 80% of the redirection such as <,>,<<,>> and multi command support.

Example

    #example 1.
    bash $> ls
    Dockerfile  MinishellEn.pdf  docker-compose.yml libft
    src Makefile    README.md   inc minishell

    bash $> ThisCommandShouldNotExit --name .venv
    Bash:   ThisCommandShouldNotExit: No such file or directory 
    bash $> echo $?
    127

    bash $> wc < .gitignore | cat
          10      11      72

I think you are getting there. here is something what will help more later

Todo: