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Import from cypat.guide: docs/windows/scripting/introduction_powershell.md

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Author(s): Byrch

Last Updated: 07-30-2025

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! Recommended Prerequisites (click to expand)
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== What is PowerShell? ==

PowerShell is a cross-platform task automation solution made up of a command-line shell, a scripting language, and a configuration management framework. PowerShell runs on Windows, Linux, and macOS.

== Why it's important ==

Powershell is important due to the nature of the competition. You are tasked with securing systems in a timely manner, while also being compliant to industry best security practices. Powershell provides a fast way to automate security checks, apply patches, disable insecure configurations, and manage users.

# Powershell can run scripts to remediate the tedious, time consuming tasks
# It allows mass bulk changes, greatly improving productivity and time usage
# It's faster and more consistent than manually navigating through GUI

== How to open/use PowerShell ==

On Windows (Recommended):

# Press '''Start''' and type <code>Powershell</code>
# Choose '''Windows Powershell''' or '''Powershell 7''' (if installed)
# To run with administrative privileges, right-click and select '''Run as Administrator'''

If the steps above do not work, try the solutions outlined in the Microsoft documentation: https://learn.microsoft.com/en-us/powershell/scripting/windows-powershell/starting-windows-powershell

== Syntax basics ==

'''Cmdlets:''' PowerShell commands follow the ''Verb-Noun'' naming convention.<br />
Example:

<syntaxhighlight lang="powershell">Get-Service</syntaxhighlight>
'''Pipelines (|):''' Pass the output of one command into another.

<syntaxhighlight lang="powershell">Get-Service | Stop-Service</syntaxhighlight>
'''DO NOT''' run code blindly from the internet. Always assess the code and potential risks before executing it. For example, the code above will "get" all services and pipe them into the "stop" command, which might stop critical services and potentially damage the host or guest system.

'''Variables:''' Use $ to define variables.

<syntaxhighlight lang="powershell">$name = "User"
${this can also be a variable} = "password"</syntaxhighlight>
'''Scripts:''' Save commands in a .ps1 file and execute it:

<syntaxhighlight lang="powershell">.\script.ps1</syntaxhighlight>
'''Help:'''

<syntaxhighlight lang="powershell">Get-Help <command></syntaxhighlight>
== Helpful websites, forums, and communities ==

[https://discord.gg/FhnaV8DnAY Cypat Community Discord (Recommended)]

[https://learn.microsoft.com/powershell/ Microsoft Learn: PowerShell]

[https://www.powershellgallery.com/ PowerShell Gallery – Find and share PowerShell modules.]

[https://www.reddit.com/r/PowerShell/ r/PowerShell (Reddit)]

[https://discord.gg/powershell PowerShell Discord Community]

[https://stackoverflow.com/questions/tagged/powershell Stack Overflow - PowerShell]

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