🐚 Minishell

Minishell is a simple UNIX shell implementation developed as part of the 42 School curriculum. The project aims to recreate a basic shell environment, mimicking the behavior of the Bash shell, and to deepen understanding of processes, file descriptors, and system calls.

• Written in C
• Implements a minimal shell with support for:
  • Command execution
  • Built-in commands: echo, cd, pwd, export, unset, env, exit
  • Redirections: >, <, >>, <<
  • Pipes: |
  • Environment variable expansion
  • Signal handling (Ctrl+C, Ctrl+\, Ctrl+D)
  • Command history navigation (up/down arrows)
• Utilizes system calls such as fork, execve, waitpid, pipe, dup2, signal, kill, getcwd, chdir, open, close, read, write, malloc, free, perror, exit, printf, access, readline, rl_clear_history, rl_on_new_line, rl_replace_line, rl_redisplay, add_history, and rl_replace_line.

• Implement a prompt that displays and waits for user input
• Parse and execute simple commands with arguments
• Implement built-in commands:
  • echo (with -n option)
  • cd (with relative or absolute paths)
  • pwd (no options)
  • export (with no options)
  • unset (with no options)
  • env (with no options or arguments)
  • exit (with exit status)
• Handle redirections:
  • >: redirect output
  • <: redirect input
  • >>: append output
  • <<: here-document
• Implement pipes (|) to connect multiple commands
• Expand environment variables in commands (e.g., $HOME, $PATH)
• Handle signals:
  • Ctrl+C: terminate current process
  • Ctrl+\: quit shell
  • Ctrl+D: exit shell
• Implement command history navigation using up/down arrows

Clone and build the project:

git clone https://github.com/IzaroArbaiza/Minishell.git
cd Minishell && make

Run the shell:

./minishell