minishell

Codam project in collaboration with @greedymelon

shell from scratch

In this project, we wrote our own shell.

We implemented

• a prompt with a working history
• a parser that handles single ' and double " quotes, the dollar sign $ and pipes |
• redirections < > >> including here doc <<
• environment variables management and expansion (including $?)
• custom signal handlers for SIGINT and SIGQUIT
• execution of piped commands by child processes
• and all that while only using ONE global variable

We also wrote several builtin functions: echo, cd, pwd, export, unset, env and exit.

inspired by bash

Our minishell executes commands just like bash. However, not all functionality falls in the scope of our project.

Here are some examples of things we did not handle:

• $1, $2..., $$
• \, ;, *
• ||, &&
• certain flags/options in our builtin functions

wanna see it in action?

The executable is called minishell.

Clone, make and enjoy