minishell

A bash-like Unix shell written in C

Features

• Dynamic prompt
• History
• PATH handling
• Environment variables setting and expanding
• Getting exit code with $?
• String literal support (', ")
• Bash-like syntax
• Pipes
• IO redirections (>, <, >>)
• Heredoc (<< EOF)
• Builtins:
  • echo [-n]
  • cd [-]
  • pwd
  • export
  • unset
  • env
  • exit
• Readline
  • You can use your Ctrl+A Ctrl+E Alt-F Alt+B Ctrl+W all you want.

Installation

• Install required readline library and headers

e.g. installation for Ubuntu:

sudo apt install libreadline8 libreadline-dev

• clone it:

git clone https://github.com/3lswear/minishell

• build it

cd minishell && make

What I've learned from this project

• IO redirection sometimes is pure magic
• Writing shells is hard
• Bash is in many places terrible and inconsistent but it's a de-facto standard and we have to live with it.

Team

This is a team project coded by:

• sunderle
• talyx