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3150shell
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upstream git tree: https://github.com/BrianOn99/3150shell

About
=====

A simple shell for csci3150.

The major components are:
mainloop =>
        reader
        parser =>
                tokenizer
		buildtree
        interprter =>
                classify (command classifier)
                "builtin commands"
                "external program laucher"
                
Features
========

glob expand
builtin command: fg, jobs, exit, cd
pipes

Compile
=======

make

Coding convention
=================

I loosely follow the guide for linux kernel:
https://www.kernel.org/doc/Documentation/CodingStyle

In short,
        [1] 8 spaces for indentation
        [2] space around operators, like: bar = 3 + 4;

Convention for this program:
        Comments of "TODO" are inserted, for codes that are not fully implemented