src_book0/ Example codes in '우분투 환경에서 C언어로 배우는 리눅스 프로그래밍'
src/ Example codes in 'The linux programming interface' published by No Starch Press
lcthw/ Exercises from 'Learn C The Hard Way', http://c.learncodethehardway.org/book.
(c) 2012, 2013 by Julie Kim. All rights reserved