PowerShell 6.0 Linux Administration Cookbook

With a recipe-based approach, we will help you take advantage of PowerShell 6.0 to call all native Linux capabilities to automate your environment.

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PowerShell 6.0 Linux Administration Cookbook

Prashanth Jayaram, Ram Iyer

With a recipe-based approach, we will help you take advantage of PowerShell 6.0 to call all native Linux capabilities to automate your environment.
Quick links: > Table of contents > What will you learn?

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Book Details

ISBN 139781789137231
Paperback467 pages

Book Description

PowerShell is an implementation of .NET Core. .NET Core is a cross-platform open source management framework, which adheres to POSIX standards and makes available API calls that work well with all of the major operating systems: Windows, Linux and macOS. .NET Core for Linux has been a success, because of its adherence to standards, as well as for its lightweight implementation. PowerShell extends the capabilities towards management of Linux servers as well as using containerizers such as Docker.

This book will include real-world examples on how you can use core PowerShell functions to effectively administer Linux-based systems and environments. Later, this book will cover interesting recipes on how system administrators can make use of PowerShell 6.0 to quickly automate complex, repetitive and time-consuming tasks. This book will also teach you to develop scripts to automate tasks that involve systems and enterprise management. By the end of this book, you will also understand your OMS automation capabilities to apply, monitor, and update configurations, gaining real-time visibility into your Linux workloads to quickly get it resolved.

Table of Contents

Chapter 1: Installation, Reference and Help
Introduction
Installing PowerShell
Fetching Help Information in PowerShell
Fetching Help Information for a Specific Cmdlet
Updating Help
Searching Help for Keywords
Looking for help information specific to a parameter
Exploring the About_ Topics
Discovering Cmdlets
Finding Modules
Installing Modules from the Repository
Listing the Various Providers in PowerShell
Chapter 2: Introducing the Core and its Capabilities
Introduction
Dissecting a .NET Core Object
Breaking down an output into different objects
Parsing input from text to object
Comparing the outputs of Bash and PowerShell
Comparing Windows PowerShell and PowerShell
Listing out the aliases and using them in place of cmdlets
Creating a Custom Alias
Export/Import Custom Aliases for Future Use
Listing out the execution policies and setting a suitable one
Chapter 3: Preparing for Administration using PowerShell
Introduction
Installing Visual Studio Code
Configuring automatic variables
Changing the shell behaviour using a variable
Enabling automated execution of commands for each load
Customising the terminal prompt
Understanding standard redirection in PowerShell
Calling native Linux commands from PowerShell
Understanding cmdlets and parameters
Running cmdlets with minimal keystrokes
Finding parameter aliases
Calling a PowerShell script
Dot-sourcing a PowerShell script
Calling a PowerShell cmdlet from outside of PowerShell
Recording the cmdlets run on the PowerShell console
Chapter 4: First Steps in Administration using PowerShell
Introduction
Working with date properties
Working with date and time functions
Working with currently-running processes to measure resource consumption
Launching and stopping a process
Finding the owner of a process
Invoking an application based on the file type
Installing the Crontab PowerShell module 
Scheduling jobs in PowerShell
Removing the jobs in PowerShell
Chapter 5: Passing Data through the Pipeline
Introduction
Selecting columns from the output
Limiting the number of output objects
Expanding the properties within properties
Filtering objects
Grouping the output
Sorting the output
Taking actions on the returned objects
Understanding pipeline-enabled parameters
Importing content into PowerShell
Chapter 6: Using Variables and Objects
Introduction
Using environment variables 
Storing the output of an instance of a .NET Core Object
Adding custom properties to an object
Creating a custom object from a returned object
Understanding extension of Type Data
Retaining object modifications across sessions
Removing custom type data
Chapter 7: Flow Control using Branches and Loops
Introduction
Using If–ElseIf–Else conditions to control script flow
Using Switch–Case conditions to control script flow
Learning to use delays
Writing a basic looping construct
Writing a more complex loop on a predefined array
Using the For loop construct
Using the While loop construct
Cleaning empty directories using the Do–While construct
Cleaning empty directories using the Do–Until construct
Chapter 8: Working with Strings
Chapter 9: Performing Calculations
Technical Requirements
Introduction
Performing arithmetic operations
Performing calculations on the output
Working with Administrative Constants
Working with calculated properties
Working with binary numbers
Performing base conversion
Chapter 10: Using Arrays and Hash Tables
Chapter 11: Handling Files and Directories
Chapter 12: Building Scripts and Functions
Chapter 13: Advanced Concepts of Functions
Chapter 14: Getting Under the Hood: Debugging and Error Handling
Chapter 15: Working with the Environment
Chapter 16: Security in PowerShell
Chapter 17: Enterprise Administration using PowerShell
Chapter 18: Best Practices Round-up
Chapter 19: PowerShell and Cloud Operations
Chapter 20: Using PowerShell for SQL Database Management

What You Will Learn

  • Understand the fundamentals of .NET Core and PowerShell
  • Understand the advanced concepts of .NET Core and PowerShell
  • Learn to write PowerShell scripts and functions with the best practices in mind
  • Take a deep dive into administering computers locally as well as remotely using PowerShell
  • Use PowerShell for advanced administration such as on the Cloud, Docker containers, VMware and SQL Server

Authors

Table of Contents

Chapter 1: Installation, Reference and Help
Introduction
Installing PowerShell
Fetching Help Information in PowerShell
Fetching Help Information for a Specific Cmdlet
Updating Help
Searching Help for Keywords
Looking for help information specific to a parameter
Exploring the About_ Topics
Discovering Cmdlets
Finding Modules
Installing Modules from the Repository
Listing the Various Providers in PowerShell
Chapter 2: Introducing the Core and its Capabilities
Introduction
Dissecting a .NET Core Object
Breaking down an output into different objects
Parsing input from text to object
Comparing the outputs of Bash and PowerShell
Comparing Windows PowerShell and PowerShell
Listing out the aliases and using them in place of cmdlets
Creating a Custom Alias
Export/Import Custom Aliases for Future Use
Listing out the execution policies and setting a suitable one
Chapter 3: Preparing for Administration using PowerShell
Introduction
Installing Visual Studio Code
Configuring automatic variables
Changing the shell behaviour using a variable
Enabling automated execution of commands for each load
Customising the terminal prompt
Understanding standard redirection in PowerShell
Calling native Linux commands from PowerShell
Understanding cmdlets and parameters
Running cmdlets with minimal keystrokes
Finding parameter aliases
Calling a PowerShell script
Dot-sourcing a PowerShell script
Calling a PowerShell cmdlet from outside of PowerShell
Recording the cmdlets run on the PowerShell console
Chapter 4: First Steps in Administration using PowerShell
Introduction
Working with date properties
Working with date and time functions
Working with currently-running processes to measure resource consumption
Launching and stopping a process
Finding the owner of a process
Invoking an application based on the file type
Installing the Crontab PowerShell module 
Scheduling jobs in PowerShell
Removing the jobs in PowerShell
Chapter 5: Passing Data through the Pipeline
Introduction
Selecting columns from the output
Limiting the number of output objects
Expanding the properties within properties
Filtering objects
Grouping the output
Sorting the output
Taking actions on the returned objects
Understanding pipeline-enabled parameters
Importing content into PowerShell
Chapter 6: Using Variables and Objects
Introduction
Using environment variables 
Storing the output of an instance of a .NET Core Object
Adding custom properties to an object
Creating a custom object from a returned object
Understanding extension of Type Data
Retaining object modifications across sessions
Removing custom type data
Chapter 7: Flow Control using Branches and Loops
Introduction
Using If–ElseIf–Else conditions to control script flow
Using Switch–Case conditions to control script flow
Learning to use delays
Writing a basic looping construct
Writing a more complex loop on a predefined array
Using the For loop construct
Using the While loop construct
Cleaning empty directories using the Do–While construct
Cleaning empty directories using the Do–Until construct
Chapter 8: Working with Strings
Chapter 9: Performing Calculations
Technical Requirements
Introduction
Performing arithmetic operations
Performing calculations on the output
Working with Administrative Constants
Working with calculated properties
Working with binary numbers
Performing base conversion
Chapter 10: Using Arrays and Hash Tables
Chapter 11: Handling Files and Directories
Chapter 12: Building Scripts and Functions
Chapter 13: Advanced Concepts of Functions
Chapter 14: Getting Under the Hood: Debugging and Error Handling
Chapter 15: Working with the Environment
Chapter 16: Security in PowerShell
Chapter 17: Enterprise Administration using PowerShell
Chapter 18: Best Practices Round-up
Chapter 19: PowerShell and Cloud Operations
Chapter 20: Using PowerShell for SQL Database Management

Book Details

ISBN 139781789137231
Paperback467 pages
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