42_minishell

Project at Hive to build a simple bash-like shell.

Overview

• The features:

  • History: Store command history and allow users to cycle through it using arrow keys.
  • Pipes and Redirection: Support pipes (|) and input/output redirection (<.>,<<,>>) incuding heredoc.
  • Lists: Support for && and || lists.
  • Signals Handling: Handle signals like Ctrl+C (SIGINT) and Ctrl+D (SIGQUIT).
  • Environment Variables: Allow setting, modifying, and using environment variables.
  • Wildcard: Expanding * for files in the current directory.

• The following builtins are implemented

  • echo with option -n
  • cd with only a relative or absolute path
  • pwd with no options
  • export with no options
  • unset with no options
  • env with no options or arguments
  • exit with no options

• The minishell program repeats the following in a loop

  • print a prompt and read a line from the user
  • parse the line and build a abstract syntax tree (AST)
  • run the command using build AST
  • expansion of the enviromental variables and wildcards in tje arguments and filenames of redirection.
  • execution of command using execve or buildin function.

Installation Guide & Usage

Thank you for your interest in our program! Follow these steps to install it on your system.

Step 1: Clone or Download Repository

• Clone: If you have Git installed, run the following command in your terminal:

  git clone https://github.com/dnapi/42_minishell.git

• Download ZIP: Alternatively, you can download the repository as a ZIP file from the "Code" dropdown menu on the GitHub page.

Step 2: Navigate to Repository

Navigate to the directory where you cloned or extracted the repository using the cd command in your terminal.

cd 42_minishell

Step 3: Install Dependencies

Before compiling the program, install readline package using brew install readline on MacOS, or sudo apt-get update and sudo apt-get install libreadline-dev on Ubuntu/Debian.

Step 4: Run Installation Script

make

Step 5: Run the Program

./minishell