Book Image

Learn PowerShell Core 6.0

By : David das Neves, Jan-Hendrik Peters
Book Image

Learn PowerShell Core 6.0

By: David das Neves, Jan-Hendrik Peters

Overview of this book

Beginning with an overview of the different versions of PowerShell, Learn PowerShell Core 6.0 introduces you to VSCode and then dives into helping you understand the basic techniques in PowerShell scripting. You will cover advanced coding techniques, learn how to write reusable code as well as store and load data with PowerShell. This book will help you understand PowerShell security and Just Enough Administration, enabling you to create your own PowerShell repository. The last set of chapters will guide you in setting up, configuring, and working with Release Pipelines in VSCode and VSTS, and help you understand PowerShell DSC. In addition to this, you will learn how to use PowerShell with Windows, Azure, Microsoft Online Services, SCCM, and SQL Server. The final chapter will provide you with some use cases and pro tips. By the end of this book, you will be able to create professional reusable code using security insight and knowledge of working with PowerShell Core 6.0 and its most important capabilities.
Table of Contents (26 chapters)
Title Page
Dedication
Packt Upsell
Contributors
Preface
Index

ConvertFrom-String


Another way to parse log files is to use the ConvertFrom-String cmdlet, with which you can create a pattern file. You can easily extract two lines from your log file and replace the desired values with {%Name%:%Value%}.The following example demonstrates this approach for the dism.log log file:

#Reading content of log file - last 50 lines
$targetData = Get-Content C:\Windows\Logs\DISM\dism.log -Tail 50

#2 example lines of code - replaced pattern values with {%Name%:%Value%}
$TemplateContent =@'
{Date*:2015-12-15} {Time:21:04:26}, {Level:Info} {Component:DISM} API: PID={PID:1472} TID={TID:5760} {Info:DismApi.dll: - DismInitializeInternal}
{Date*:2015-12-15} {Time:21:04:26}, {Level:Info} {Component:DISM} API: PID={PID:1472} TID={TID:5760} {Info:DismApi.dll: <----- Starting DismApi.dll session -----> - DismInitializeInternal}
'@

#Parse File
$parsedFile =$targetData | ConvertFrom-String -TemplateContent $TemplateContent 

#Show parsed data
$parsedFile | Select-Object...