This book teaches the fundamentals and advanced topics necessary for a comprehensive understanding of shell scripting in Linux. The book is filled with real-world examples and usable scripts, helping readers navigate the challenging Linux environment with ease and convenience. 

Linux Command Line and Shell Scripting Bible, 4th Edition

Learn the best programming languages and platforms for website and web app development

Back End

The GNU/Linux free software operating system is massively popular among web developers and is the cornerstone of the GLAMP server–software stack (GNU, Linux, Apache, MySQL, Perl/PHP/Python)

Linux

Linux Command Line and Shell Scripting BIBLE

Preface

Starting with Linux Shells

Getting to the Shell

Basic Bash Shell Commands

More Bash Shell Commands

Understanding the Shell

Using Linux Environment Variables

Understanding Linux File Permissions

Managing Filesystems

Installing Software

Working with Editors

Basic Script Building

Using Structured Commands

More Structured Commands

Handling User Input

Presenting Data

Script Control

Creating Functions

Writing Scripts for Graphical Desktops

Introducing sed and gawk

Regular Expressions

Advanced sed

Advanced gawk

Working with Alternative Shells

Part IV Creating and Managing Practical Scripts

Writing Simple Script Utilities

Getting Organized

APPENDIX A: Quick Guide to Bash Commands

APPENDIX B: Quick Guide to sed and gawk

Symbols and Numerics $#, 382–384 $@, 384–386 $*, 384–386 $?, 477, 478–479 $(), 609–610 $?, 663 $($#), 384–386 $() format, 283 $? special variable, 297 &>, 415 $0, 380, 480, 537 $1, 378, 537 1>, 415 $2, 537 2>, 415 & (ampersand), 443–444, 449, 606–607 * (asterisk), 64–65, 114, 502, 566, 578–579 \ (backslash character), 758 ` (backtick character), 283 ^ (caret character), 243, 570–571 ' (closing quotation mark), 534 {} (curly braces), 127, 536, 581–582 $ (dollar sign), 48, 571–572, 600 . (dot) operator, 59, 68, 277, 490, 493, 572–573 -- (double dash), 389–390, 393 .. (double dot), 59–60 !! (double exclamation mark), 131 >> (double greater than), 285, 413 << (double less-than symbol), 286 = (equal sign), 555 ! (exclamation mark), 65, 600–602 / (forward slash), 570 > (greater than), 285 < (less than), 285 + (plus sign), 580–581 | (pipe character), 106, 582–583 # (pound sign), in shell scripts, 276 ? (question mark), 64–65, 579–580 " (quotation marks), 141 ; (semicolon), 121, 122, 127, 275, 276, 534 [] (square brackets), 573–575 ~ (tilde), 639–640 | (vertical line), 287 

Index

Linux Command Line and Shell Scripting Bible, 4th Edition

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Richard Blum

Christine Bresnahan

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Linux Command Line and Shell Scripting Bible, 4th Edition