minishell

Re-implemented a simple shell.
It partially behaves like GNU Bash version 4.4.0.

Usage (Linux / MacOS)

Install GNU readline

make readline

Compile

make

Execute minishell

./minishell

Basic Minishell Features

• Shell Syntax

  • Single Quotes : '
  • Double Quotes : "

• Shell Commands

  • Simple Commands
  • Pipelines : |
  • Lists of Commands : &&, ||
  • Grouping Commands : (, )

• Shell Parameters

  • Special Parameters : $?

• Shell Expansions

  • Shell Parameter Expansion
  • Word Splitting
  • Pattern Matching : *
  • Quote Removal

• Redirections

  • Redirecting Input : <
  • Redirecting Output : >
  • Appending Redirected Output : >>
  • Here Documents : <<

• Executing Commands

  • Simple Command Expansion
  • Command Search and Execution
  • Environment
  • Exit Status
  • Signals : SIGINT(^C), SIGQUIT(^\)

• Shell Builtin Commands

  • cd
  • echo
  • env
  • exit
  • export
  • pwd
  • unset

• Shell Variables

  • CDPATH
  • HOME
  • OLDPWD
  • PATH
  • PWD
  • SHLVL

• Command Line Editing : EOF(^D)

• History

More detail : minishell's specification

Used external functions

readline, rl_clear_history, rl_on_new_line, rl_replace_line, rl_redisplay, add_history, malloc, free, write, access, open, read, close, fork, wait, waitpid, sigaction, exit, getcwd, chdir, stat, unlink, execve, dup, dup2, pipe, opendir, readdir, closedir, strerror, perror, isatty

Author

• ak0327
• habvi