/42_minishell

Minishell is a Unix shell emulator written in C language

Primary LanguageC

minishell

Minishell is a simple Unix shell emulator written in C language

Project done in collaboration with dzhoka

The goal of the project is to recreate a simplified version of a Unix shell, capable of interpreting and executing basic shell commands and handling various features such as environment variables, redirection, pipes, and signal handling.

Features:

  • Display a prompt when waiting for a new command
  • Command Execution:
    • Ability to execute commands entered by the user
  • History:
    • Implement command history functionality
  • Built-in Commands:
    • Implementation of built-in shell commands such as
    • cd with only a relative or absolute path
    • echo with option -n
    • pwd with no options
    • export with no options
    • unset with no options
    • env with no options or arguments
    • exit with no options
  • Redirection:
    • Support for input and output redirection (<, >, >>) and heredoc (<<)
  • Pipes:
    • Handling of pipe (|) operations for connecting multiple commands
  • The exit status:
    • Handling $? which should expand to the exit status of the most recently executed foreground pipeline
  • Environment Variables:
    • Management of environment variables and their manipulation (export, unset)
  • ’ (single quotes - prevent from interpreting meta-characters in quoted sequence)
  • " (double quotes - prevent from interpreting meta-characters in quoted sequence except for $)
  • Signal Handling:
    • Handling of signals such as ctrl-C, ctrl-D and ctrl-\ which should behave like in bash
  • Error Handling:
    • Provide informative error messages for user commands

Installing and running the project:

  1. Clone the repository:
    git clone git@github.com:lh-lena/minishell.git minishell
  1. Navigate to the project directory:
    cd minishell
  1. Compile the project:
    make
  1. Run the Minishell:
    ./minishell or make run

Makefile Available Targets:

  • make or make all - compiles minishell
  • make clean - wipes all object files
  • make fclean - deletes minishell and all object files
  • make re - fclean + all
  • make run - allows project execution without memory leak caused by readline

<<<<<<< Updated upstream

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Common Instructions

  • The project must be written in C
  • function no longer 25 lines

Stashed changes