Challenge 1 - Unix Shell

GOAL

Create a Unix shell similar to that of "bash".

Upon exectution, the program will accept command lines from STDIN. Command lines can be:

Name		Name	Last commit message	Last commit date
Latest commit History 3 Commits
Makefile		Makefile
README.md		README.md
ast.c		ast.c
ast.h		ast.h
nush.c		nush.c
operators.c		operators.c
operators.h		operators.h
parse.c		parse.c
parse.h		parse.h
test.pl		test.pl
tokenize.c		tokenize.c
tokenize.h		tokenize.h
vec.c		vec.c
vec.h		vec.h