regular expression and sed/awk

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UNIX/Linux 스크립트 프로그래밍을 하다 보면 regular expression 쓸 일이 많아지지요. Google하다가 찾아낸 regular expression이랑 sed/awk에 대한 짧은 자료입니다. 출처는 http://www.cs.umsl.edu/~sanjiv/classes/cs2750/lectures/re.pdf 여기 Media에도 저장되어 있습니다. http://www.openstatistics.net/wp-content/uploads/2011/09/re.pdf