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Enterprise PowerShell Scripting Bootcamp

Enterprise PowerShell Scripting Bootcamp

By : Brenton J.W. Blawat
3.3 (3)
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Enterprise PowerShell Scripting Bootcamp

Enterprise PowerShell Scripting Bootcamp

3.3 (3)
By: Brenton J.W. Blawat

Overview of this book

Enterprise PowerShell Scripting Bootcamp explains how to create your own repeatable PowerShell scripting framework. This framework contains script logging methodologies, answer file interactions, and string encryption and decryption strategies. This book focuses on evaluating individual components to identify the system’s function, role, and unique characteristics. To do this, you will leverage built-in CMDlets and Windows Management Instrumentation (WMI) to explore Windows services, Windows processes, Windows features, scheduled tasks, and disk statistics. You will also create custom functions to perform a deep search for specific strings in files and evaluate installed software through executable properties. We will then discuss different scripting techniques to improve the efficiency of scripts. By leveraging several small changes to your code, you can increase the execution performance by over 130%. By the end of this book, you will be able to tie all of the concepts together in a PowerShell-based Windows server scanning script. This discovery script will be able to scan a Windows server to identify a multitude of components.
Table of Contents (15 chapters)
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3
3. Working with Answer Files
10
10. Optimizing Script Execution Speed
14
Index

PowerShell script 4 - merging the scanning script result data


As you run the Windows server scanning script on multiple systems in your environment, you will have a need to merge multiple CSV files into a single CSV file. This will allow for better searching of the scan results, and help you identify trends in your server infrastructure. PowerShell offers the Import-csv and Export-csv cmdlets, which provide the ability to manipulate CSV data. A common technique is to use the Import-csv and Export-csv cmdlets with a pipeline to import, manipulate, and export the data to a new CSV file.

To get started, you will need to create several CSV files to merge together. To create multiple CSVs that are similar to the Windows server scanning script output, you can perform the following:

$logloc = "C:\temp\POSHScript\CSVDEMO\"
$date = (Get-Date -format "yyyyMMddmmss")
Function create-testcsv { param($servername)
    $csvfile = "$logloc\$servername" + "_" + $date + "_ScanResults.csv"
    new-item $csvfile...
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