PanosGreg

function Get-DurationText {
<#
.SYNOPSIS
    Get the elapsed duration as a string, in a number of different formats
.EXAMPLE
    Get-DurationText -Duration ([timespan]::FromDays(2))
    2d 0hr
#>
[CmdletBinding(DefaultParameterSetName='Timespan')]
[OutputType([string])]

PanosGreg

# I wrote these notes in Sep-2024

# AES 128 and 256 bits
# Without using .NET Streams


## Initial Input
[string]$PlainText = 'this is a test message'
[string]$Password  = 'SampleSecret'

PanosGreg

function Get-ArgumentCompleter {
<#
.SYNOPSIS
    Get the argument completers that are registered in the current session (if any)
.EXAMPLE
    Import-Module PowerShellGet
    Get-ArgumentCompleter

    shows the argument completers that are registered from the PowerShellGet module
.EXAMPLE

PanosGreg

function Get-AzRequestInfo {
<#
.SYNOPSIS
    It gets the web request details from an azure command.

    IMPORTANT:
    The azure command must be run with the -Debug switch AND you need to collect the debug stream
.EXAMPLE
    $ResGrp = Get-AzResourceGroup -Name mysub -Location eastus2 -Debug 5>&1
    Get-AzRequestInfo $ResGrp

PanosGreg

# 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

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

## Parameter Sets Examples


# Example #1

# Choose 1 or 2 out of 2
# order is not important

<# Combinations: 3 in total

PanosGreg

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

PanosGreg

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

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