Scripting - Kofler, Michael

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Auteur(s) : Kofler, Michael

Editeur : Rheinwerk Publishing Inc.

Langue : Anglais

Parution : 01/03/2024

Format : Moyen, de 350g à 1kg

Nombre de pages : 470

Dimensions : 25.4 x 17.6 x 2.6

ISBN : 1493225561

Résumé :

Developers and admins, it's time to simplify your workday. With this practical guide, use scripting to solve tedious IT problems with less effort and less code! Learn about popular scripting languages: Bash, PowerShell, and Python. Master important techniques such as working with Linux, cmdlets, regular expressions, JSON, SSH, Git, and more. Use scripts to automate different scenarios, from backups and image processing to virtual machine management. Discover what's possible with only 10 lines of code!

In this book, you'll learn about: a. Scripting Languages
Beginners, get the crash course you need in Bash (and its alternative, Zsh), PowerShell, and Python syntax to perform scripting tasks. b. Scripting Techniques Learn to write successful scripts by following expert guidance and practical examples. Use commands for processing text files, functions for handling JSON and XML files, cron for automating script execution, SSH for running code, and more. c. Scripting Examples See scripting in action! Walk through concrete applications of scripting: data backup, image processing, web scraping, REST APIs, database maintenance, cloud scenarios, and virtual machine administration. Highlights include: 1) Bash and Zsh 2) Linux toolbox 3) PowerShell and CmdLets 4) Python and pip 5) JSON, XML, and INI 6) SSH, VS Code, and Git 7) Automation with cron 8) Backup automation 9) Image processing 10) Web scraping 11) Cloud scripting 12) Virtual machines

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Sommaire:
... Preface ... 23

... Bash, PowerShell, or Python? ... 23

... About This Book ... 24

PART I ... Scripting Languages ... 27

1 ... Scripting: Doing One Thing ... 29

1.1 ... What Does Scripting Mean? ... 29

1.2 ... Scripting Languages ... 31

1.3 ... The Agony of Choice ... 35

2 ... Ten Times Ten Lines ... 39

2.1 ... Markdown Spell Checker (Bash) ... 39

2.2 ... Sorting Images by Date (PowerShell) ... 40

2.3 ... Converting a JSON File to XML Format (Python) ... 41

2.4 ... Daily Server Backups (Bash) ... 42

2.5 ... Web Scraping (Python) ... 43

2.6 ... Logging Weather Data (Python) ... 44

2.7 ... Microsoft Hyper-V Cleanup (PowerShell) ... 45

2.8 ... Statistical Analysis of a Logging File (Bash) ... 46

2.9 ... Uploading Files to the Cloud (PowerShell) ... 46

2.10 ... Cloning Virtual Machines (Bash) ... 47

3 ... Bash and Zsh ... 49

3.1 ... Terminal, Shell, and Bash ... 49

3.2 ... Installation ... 50

3.3 ... Running Commands Interactively ... 53

3.4 ... Zsh as an Alternative to Bash ... 56

3.5 ... The First Bash Script ... 58

3.6 ... Running Commands ... 63

3.7 ... Standard Input and Standard Output ... 66

3.8 ... Globbing, Brace Extension, and Handling File and Directory Names ... 68

3.9 ... Variables ... 72

3.10 ... Strings ... 77

3.11 ... Branches ... 85

3.12 ... Loops ... 91

3.13 ... Functions ... 95

3.14 ... Error Protection ... 96

4 ... PowerShell ... 99

4.1 ... Installation ... 99

4.2 ... Windows Terminal ... 103

4.3 ... Calling cmdlets and Functions ... 106

4.4 ... Combining Commands ... 112

4.5 ... The First Script ... 114

4.6 ... Variables, Strings, and Objects ... 120

4.7 ... Arrays and Hash Tables ... 131

4.8 ... Output Redirection ... 133

4.9 ... Loops ... 137

4.10 ... Branches ... 139

4.11 ... Functions and Parameters ... 141

4.12 ... Modules ... 147

4.13 ... Error Protection ... 149

5 ... Python ... 153

5.1 ... Installing Python ... 153

5.2 ... Getting to Know Python in a Terminal Window ... 156

5.3 ... Programming Custom Scripts ... 157

5.4 ... Elementary Syntax Rules ... 158

5.5 ... Numbers ... 160

5.6 ... Strings ... 162

5.7 ... Lists ... 169

5.8 ... Tuples, Sets, and Dictionaries ... 171

5.9 ... Variables ... 174

5.10 ... Operators ... 178

5.11 ... Branches (if) ... 180

5.12 ... Loops (for and while) ... 181

5.13 ... Functions ... 187

5.14 ... Processing Text Files ... 192

5.15 ... Error Protection ... 195

5.16 ... System Functions ... 195

5.17 ... Modules ... 198

5.18 ... Installing Additional Modules Using pip ... 199

PART II ... Work Techniques and Tools ... 205

6 ... Linux Toolbox ... 207

6.1 ... Directories and Files ... 207

6.2 ... Finding Files ... 209

6.3 ... Compressing and Archiving Files ... 210

6.4 ... Using Root Privileges ... 212

6.5 ... Software Installation ... 218

6.6 ... Other Commands ... 220

7 ... cmdlets for PowerShell ... 223

7.1 ... Directories and Files ... 223

7.2 ... Finding Files ... 227

7.3 ... Compressing and Archiving Files ... 230

7.4 ... Process Management ... 232

7.5 ... Registration Database and System Informatio...