42sh

An interactive Linux shell written in C

Summary

This project is an Epitech Project aimed at rewriting a linux shell in C from scratch. It's based on both minishell and minishell2 projects at Epitech. The goal was to push further the features for the user like improved syntax, autocompletion, history, etc.

Features

• Commands and arguments
• Environment variables
• Pipes
• Redirection
• History
• History navigation
• Colors
• Builtins
• Prompt editing
• Job controls
• Globbings
• Autocompletion
• Aliases

Capabilities

It handles the following builtins:

• cd
• pwd
• env
• setenv
• unsetenv
• exit
• which

It also handles the following syntax:

• >, >>, < for redirection
• | for pipes
• ; to separate commands
• || as the OR operator
• &&as the AND operator
• * for the globbings
• ! to load a command from the history

You can start the shell with a command already typed (-c as second parameter, third parameter should be the command to run).

./42sh -c "echo hello"
hello

Compilation

Need to have gcc installed

git clone git@github.com:dawpitech/42sh.git
cd 42sh
make -j

./42sh

Or using the provided nix flake:

nix run github:dawpitech/42sh