minishell

The project was made in collaboration with aafyodorov

About

It's a minimum viable version of a real shell. The main goal is to have a good understanding of process creation and synchronisation using the C programmming language.

Installation & Usage

Building the program

git clone https://github.com/poringdol/minishell.git && cd minishell && make

Running the program

./minishell from the project root.

Description

• Programming language: C
• Implemented a series of builtins:
  • echo (any arguments + -n option)
  • cd (with/without argument, argument -)
  • export
  • unset
  • env
  • exit
  • pwd
• Errors and echo $? handling
• Double and single quotes handling
• Local and environment variable substitution handling
• Signal management (specifically Ctrl + C, Ctrl + D, Ctrl + \)
• Multiple commands (semi colons)
• Multiple redirections handling (>, >>, <)
• Multiple pipes handling (|)
• Functions used:
  • malloc, free
  • open, close, read, write
  • opendir, readdir, closedir
  • getcwd, chdir
  • fork, execve
  • pipe, dup, dup2
  • wait
  • signal
  • exit
  • libft (own library)
• No memory leaks