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Project Name

Minishell is a lightweight implementation of bash


Todo

Environment

  • Write new CWD to $CWD
  • Parse ~/.mshrc
  • write return code to $?

Prompt

  • Rework execution time so it works cross platform, maybe with time?
  • Fix on Mac, Total garbage

Parser

  1. Quotes
  2. ;
  3. {} () < > << >> <<< | [] ? & && ||
    • $NAME $(command)
  4. prepare commands for execve

Exec

  1. fork if there are pipes
  2. execve all the commands

Builtins

  • cd
  • export
  • unset
  • alias
  • env Test properly
  • pwd Test properly
  • echo Test properly
  • exit Test properly

Signals

  • ^C should break the readline
  • ^\ shouldn't print anything

Bugs

crashes when giving proper memory and a lot of arguments

Overwrites line when typing past the terminal width at first command


Improvements

Handle scripts from stdin or argument

  • Functions()
  • Statements, if, then, else, elif, while, for

Posix Compliant

  • //// is the same as / or /////////////////////////////

Extra Builtins

  • z to jump around

Usage

  1. Simply clone or download the repository
  2. Run make in the cloned directory
  3. Start the shell with ./minishell

Tester

Todo

  • Figure out the best way to test minishell

This project is part of the studies at 42