SteveL-MSFT

# Side-by-side

## Use PSCore6 w/ elevation

Invoke-WebRequest https://github.com/PowerShell/PowerShell/releases/download/v6.1.0/PowerShell-6.1.0-win-x64.zip -OutFile pwsh61.zip
Unblock-File pwsh61.zip
Expand-Archive pwsh61.zip

## PowerShell.exe vs Pwsh.exe

SteveL-MSFT

# Single script for Windows PowerShell and PowerShell Core

## Use PSEdition

@'
if ($PSVersionTable.PSEdition -eq "Core")
{ "PowerShell Core!" }
else
{ "Windows PowerShell!" }
'@ > both.ps1

SteveL-MSFT

# Define the PS code to embed in the XML below here.
$sb = {

    # Make sure we control the specific strict mode in effect.
    # (The strict-mode setting is inherited from the parent scope.)
    Set-StrictMode -Version 1

    # Save the error record at hand as well as its invocation info.
    $err = $_
    $myInv = $err.InvocationInfo

SteveL-MSFT

iex "& { $(irm https://aka.ms/install-powershell.ps1) } -UseMSI -Preview"

SteveL-MSFT

@"
class foo
{
  [string] static bar([string] $text)
  {
    return $text
  }
}
"@ > class.psm1

SteveL-MSFT

# PowerShell remoting over SSH

## Configuring Windows

### Install SSHD as Feature on Demand
### Modify sshd_config for powershell subsystem

## SSH remoting

ssh –l user@domain computer

SteveL-MSFT

$num = 50
$ps = @("powershell.exe", "C:\Program Files\PowerShell\6\pwsh.exe", "C:\Program Files\PowerShell\7-preview\pwsh.exe")
$ps | ForEach-Object {
    $thisps = $_
    $psv = & $thisps -nop -c '$psv = $psversiontable.gitcommitid; if ($psv -eq $null) { $psv = $psversiontable.psversion.tostring() }; $psv'
    [int]$i = 0
    1..$num | ForEach-Object {
        $i += (Measure-Command {
            & $thisps -nop -c exit
        }).TotalMilliseconds

SteveL-MSFT

add-type -AssemblyName presentationframework

$xaml = @"
<Window
    xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation"
    xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml"
    x:Name="Window" Title="Initial Window" WindowStartupLocation = "CenterScreen" 
    Width = "400" Height = "300" ShowInTaskbar = "True">
</Window>
"@ 

SteveL-MSFT

nal w write-host
$d='First','Second','Third','Fourth','Fifth','Sixth','Seventh','Eighth','Ninth','Tenth','Eleventh','Twelfth',"A Partridge in a Pear Tree.`n",'Two Turtle Doves, and','Three French Hens,','Four Calling Birds,','Five Gold Rings,','Six Geese-a-Laying,','Seven Swans-a-Swimming,','Eight Maids-a-Milking,','Nine Ladies Dancing,','Ten Lords-a-Leaping,','Eleven Pipers Piping,','Twelve Drummers Drumming,'
$l="On the % day of Christmas`nMy true love sent to me"
0..11|%{w $l.Replace("%",$d[$_])
$_..0|%{w $d[$_+12]}}

SteveL-MSFT

1..100|%{$_%15?$_%3?$_%5?$_ :'Buzz':'Fizz':'FizzBuzz'|Write-Host}