minishell

The objective of this project is for you to create a shell. New concepts about processes and file descriptors are introduced.

Project summary

3th ring Codam project

This project’s objectives are similar to all this first year’s objectives: Rigor, use of C, use of basic algorithms, information research etc. With Minishell, you’ll be able to travel through time and come back to problems people faced when Windows didn’t exist.

This is an group project created by R. Bakker & Q. Li

Technical considerations

The project needs to comply with the following rules/functionalities.

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) like in bash
It must implement the builtins like in bash:
- 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
; in the command should separate commands like in bash
’ and " should work like in bash except for multiline commands
Redirections < > “>>” should work like in bash except for file descriptor aggregation
Pipes | should work like in bash
Environment variables ($ followed by characters) should work like in bash
$? should work like in bash
ctrl-C, ctrl-D and ctrl-\ should have the same result as in bash

Usage

Run the following commands in the terminal

$ git clone https://github.com/rbakker96/minishell.git minishell
$ cd minishell
$ make
$ ./minishell

Used resources

Most noteworthy resources used during this project