minishell

The objective of this project is for you to create the simplest start of a shell script.
It's a minimum viable version of a real shell. The main goal is to have a good understanding of process creation and synchronisation using the C programmming language.

Installation and usage

Tested only on MacOS

Building the program

1. Download this repository

git clone --recurse-submodules https://github.com/vliubko/minishell.git

2. cd into the root directory and run make

cd minishell && make

Running the program

After building the source, run ./minishell from the project root directory.

Mandatory

• Can only use C
• Must respect the school imposed coding style (The Norm)
• No memory leaks
• Implement a series of builtins: echo, cd, setenv, unsetenv, env, exit
• Manage the errors without using errno, by displaying a message adapted to the error output
• Can only use these standard library functions:
  • malloc, free
  • access
  • open, close, read, write
  • opendir, readdir, closedir
  • getcwd, chdir
  • stat, lstat, fstat
  • fork, execve
  • wait, waitpid, wait3, wait4
  • signal, kill
  • exit
• Must have a Makefile to build the program
• The binary file must be named minishell
• Can use Libft
• Handle program interruption (Ctrl + D)

Bonuses

• Signal management (specifically Ctrl + C)
• PATH's right management (error handling)
• Multiple commands (semi colons)