minishell

This project is to create a simple shell. Concepts about processes and file descriptors are introduced.

This is a group project completed by T. Clement & J.B. Cornelisse

Technical considerations

The following elements need to work like in bash

• Show a prompt when waiting for a new command

• Search and launch the right executable (based on the $PATH variable or by using relative or absolute path)

• Implement the below builtins:

  • echo with option ’-n’
  • cd with only a relative or absolute path
  • pwd without any options
  • export without any options
  • unset without any options
  • env without any options and any arguments
  • exit without any options

• Pipes |

• ' and " except for multiline commands

• Redirections < > >> << except for file descriptor aggregation

• Environment variables ($ followed by characters)

• $? to store exit status of the previous command

• ctrl-C, ctrl-D and ctrl-\

How to test

Run the following commands

$ git clone https://github.com/DelicaTessa/42-minishell
$ cd 42-minishell
$ make
$ ./minishell