minishell

Description

minishell is a very simple shell written in C. It has the following commands built in.

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

Requirement

• OS X
• C compiler
• make
• readline

To install readline on a mac, use brew, etc. as follows.

brew install readline

Build

Execute the following command in the appropriate directory.

https://github.com/Yamada-Ika/minishell.git
cd minishell
make

Usage

Execute the following command in the directory where minishell exists. After execution, a prompt will appear.

./minishell
minishell>

Features

• It reproduces the following basic behaviors

  • Pipes, redirects, and heredocs
  • Environment variable registration, deletion, and variable expansion

• example

minishell> echo aaa | cat | cat | cat | cat
aaa
minishell> cat Makefile > log
minishell> diff log Makefile | cat -e
minishell>

minishell> cat << EOS
> hoge
> EOS
hoge

minishell> export test=hoge
minishell> echo $test
hoge
minishell> unset test
minishell> echo $test

minishell>

• \, ;, and so on cannot be interpreted!

Author

@shige-lab

Licence

This software is released under the MIT License, see LICENSE.