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首页Introduction to unix and linux shell - 2

Introduction to unix and linux shell - 2

linux

shell

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A good introduction to Shell, including two parts. This is part 2. Please open this file with PPT 2007.

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Agend

Introducon to Unix/Linux Shell - 2

Star Ren

2008-01-25

staren@live.com

Agend

Preface



This presentation focus on RE, and grep/sed/awk



To fully utilize the power of shell scripting, you need to master Regular

Expressions; certain commands and utilities commonly used in scripts,

like grep, sed, and awk are use Res



RE: stands for “Regular Expression” - Text search and string

manipulation



grep: stands for “global regular expression parser” - print lines

matching a pattern



grep, egrep, fgrep



sed: stands for “stream editor” - a non-interactive line editor



awk: stands for the authors “Aho, Weinberger, & Kernighan” - a full-

featured text processing language with a syntax reminiscent of C

Agend

Agenda



grep



awk



sed

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