Minishell

As beautiful as a shell

About

Through the Minishell project, you will get to the core of the Unix system and explore an important part of this system’s API: process creation and synchronisation. Executing a command inside a shell implies creating a new process, which execution and final state will be monitored by its parent’s process.

Installation

1. Download/Clone this repo

git clone https://github.com/pankratdodo/minishell-42.git

2. cd into directrory and run make

make
./minishell

Main project instructions

General Instructions

• Project must be written in C in accordance with the Norm.
• Program cannot have memory leaks.
• No Segmentation fault, bus error, double free, etc.
• This interpreter must display a prompt (a simple $> for example) and wait till you type a command line, validated by pressing enter.
• The prompt is shown again only once the command has been completely executed.
• The executable are those you can find in the paths indicated in the PATH variable.
• In cases where the executable cannot be found, it has to show an error message and display the prompt again.
• You must implement a series of builtins: echo, cd, setenv, unsetenv, env, exit.
• Allowed to use the following 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

Bonus Part

• Management of signals and in particular Ctrl-C. The use of global variables is allowed as part of this bonus.
• Auto completion.
• The separation of commands with ";".
• Functions help, clear.