PanosGreg’s gists

PanosGreg / Hex_Conversions.ps1

Created September 1, 2024 19:36

Hex Conversions (from/to Hex)


	# Convert to/from Hex


	### From Byte array to Hex String
	$bytes = [byte[]](10,20,30,40)


	# a) via .ToString() method
	$bytes.ForEach({$_.ToString('x2')}) -join ''

PanosGreg / Get-TaskManager.ps1

Last active September 1, 2024 17:38

Get a result like task-manager on the console

	function Get-TaskManager {
	<#
	.SYNOPSIS
	Gets the CPU, memory and disk utilization of the top X processes (by default 10)
	The command can also query remote computers.
	Sorting works based on the processes with the highest CPU utilization.
	.DESCRIPTION
	Very briefly, these are the steps taken by this command as part of its process workflow:
	- Load an internal function, the Get-TaskUsage
	- Remote to one or more computers with Invoke-Command and pass in the internal function

PanosGreg / ParamSet.ps1

Created June 24, 2024 08:41

PowerShell Parameter Sets

PanosGreg / Get-WindowsVersion.ps1

Last active April 15, 2024 10:18

It provides the equivalent information to winver.exe

	function Get-WindowsVersion {
	<#
	.SYNOPSIS
	It provides the equivalent information to winver.exe
	.EXAMPLE
	Get-WindowsVersion
	#>
	[cmdletbinding()]
	param ()

PanosGreg / Get-WinUpdate.ps1

Last active March 26, 2024 14:46

Get a list of the windows updates with a KB ID using the COM Microsoft.Update.Searcher

	function Get-WinUpdate {
	<#
	.SYNOPSIS
	Get a list of all the windows updates on the system

	Note: This function will only show the updates that have a KB ID
	Any hotfixes without an update ID won't be included in the results
	.EXAMPLE
	Get-WinUpdate \| where Title -like 'cumulative update for windows'
	.EXAMPLE

PanosGreg / Get-RuntimeDiagnostics.ps1

Last active February 22, 2024 21:50

Collect the count and memory size of the .NET objects used by a process

	function Get-RuntimeDiagnostics {
	<#
	.SYNOPSIS
	Collect the count and memory size of the .net objects used by a process
	.DESCRIPTION
	Collect the count and memory size of the .net objects used by a process

	This function is using the Microsoft.Diagnostics.Runtime .NET library from nuget:
	https://www.nuget.org/packages/Microsoft.Diagnostics.Runtime

PanosGreg / Get-ADPrincipal.ps1

Last active April 24, 2024 08:37

Function that finds AD Principals, namely Users, Computers or Groups

	function Get-ADPrincipal {
	<#
	.SYNOPSIS
	Get users,computers or groups from Active Directory, without the need of the ActiveDirectory module.

	The examples show the use of the .Members property, the .GetGroups() method and also
	the .Add() and .Remove() methods from the group members list along with the .Save() method.
	.EXAMPLE
	Get-ADPrincipal test

PanosGreg / Get-AwsTempCredential.ps1

Last active April 24, 2024 08:46

Get AWS Credentials (access,secret,token) by assuming the IAM Role attached to the instance

	function Get-AwsTempCredential {
	<#
	.SYNOPSIS
	This function gets the AWS Access,Secret and Token by assuming the IAM Role that is attached to the current EC2 instance.

	This should be used on EC2 instances only, not on any other VMs. (like Azure,GCP,Hyper-V or VMWare)
	There should be an IAM Role attached to the instance, otherwise it won't work.

	Once you get the temporary credentials, you can then login to AWS with "Set-AWSCredential"
	or alternatively you can use the .LoginAWS() method from this object.

PanosGreg / Microsoft.Extensions.Configuration.ps1

Created December 2, 2023 14:14

Microsoft.Extensions.Configuration in PowerShell

	## Drilling down into the Microsoft.Extensions.Configuration namespace from a PowerShell point-of-view

	## Note: the inspiration for this came up by watching a .net video about configuration from Chris Ayers
	# [.NET Configuration In Depth \| .NET Conf 2023](https://www.youtube.com/watch?v=aOXaBZFB0-0)



	## How to load a .dll which has some dependencies
	## you just have to get the package from nuget which will also retrieve all of the dependencies

PanosGreg / Uniques.ps1

Created November 16, 2023 16:50

From a string array get the uniques and retain the order


	# from a string array get the uniques and retain the order

	# get the unique items from a string array with case-insensitive and also retain the current order

	# this approach is to work-around the gap from Select-Object -Unique, which compares the object and not the property
	# in the case of string arrays.
	# and also to retain the order, whereas the Sort-Object -Unique would change the order

	# source string array

Panos Grigoriadis PanosGreg