Linux Shell Scripting Tutorial (LSST) v1.05r3
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Chapter 5: Essential Utilities for Power User
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Introduction

Linux contains powerful utility programs. You can use these utility to

Following section introduce you to some of the essential utilities as well as expression. While programming shell you need to use these essential utilities. Some of these utilities (especially sed & awk) requires understanding of expression. After the quick introduction to utilities, you will learn the expression.


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Preparing for Quick Tour of essential utilities