CTP3 Archives | Powershell

Another Holiday Gift from the PowerShell Team: PowerShell 3.0 CTP2 – Getting Started with Windows PowerShell Workflow

PowerShell TeamDecember 21, 2011Dec 21, 201112/21/11

After delivering the Thanksgiving Gift this year, it’s time for a Holiday Gift …. No not as big as the one we had about 3 years ago …!!

Today, we published the “Getting Started with Windows PowerShell Workflow”

Update-TypeData, ISE CTP3 vs ISE RC, and Teched2009 Demos

PowerShell TeamMay 26, 2009May 26, 200905/26/09

There were quite a few name changes in the ISE Object Model from CTP3 to RC

Using Update-TypeData, we can achieve some parity between the two

We can add aliases to the CTP3 version to make it look like the RC Version

For example,

V2 Quick Tips: Finding Extra Outputs From Your Script

PowerShell TeamMay 20, 2009May 20, 200905/20/09

One of the nifty features of functions in PowerShell is that they can return as many results from as many places as you’d like. In fact, any method or cmdlet that would give you an output if you try it on the command line will also return values from a function.

V2 Quick Tip: Starting a new elevated process from a PowerShell script

PowerShell TeamApril 22, 2009Apr 22, 200904/22/09

One of the systems administration hurdles of the post-Vista world is figuring out how to make a script run as an administrator.

In PowerShell V2, using the Start-Process cmdlet, this is a one liner that will get the job done:

<span style="color: #0000ff">Start-Process</span> <span style="color: #8b0000">&quot;$psHome\powershell.exe&quot;</span> <span style="color: #000080">-Verb</span> <span style="color: #8a2be2">Runas</span> <span style="color: #000080">-ArgumentList</span> <span style="color: #8b0000">'-command &quot;Get-Process&quot;'</span>

Start-Process "$psHome\powershell.exe" -Verb Runas -ArgumentList '-command "Get-Process"'

Hope this Helps,

Do PowerShell Demos in the ISE

PowerShell TeamApril 21, 2009Apr 21, 200904/21/09

Jeffry Snover and many other have used Start-Demo in powershell.exe
http://blogs.msdn.com/powershell/archive/2007/03/03/start-demo-help-doing-demos-using-powershell.aspx

Continuing the tradition, we now have ISEDemo.psm1

To use it, start ISE and run
Import-Module ISEDemo.psm1 #(attached)
Start-Demo c:\path\to\demofile.txt

Type enter to execute the command once its finished typing
You can escape to clear and type some other command
To get the next command again,

V2 Quick Tip: Monitoring Performance Counters with PowerShell

PowerShell TeamApril 21, 2009Apr 21, 200904/21/09

I just got a ping on our internal discussion list about how to get at the Performance counters in PowerShell. In V2, we’ve got some nifty cmdlets to help read performance counters.

Here are a few of quick one liners to get you started:

<span style="color: #006400"># List all of the performance counters you can monitor</span>
<span style="color: #0000ff">Get-Counter</span> <span style="color: #000080">&#8211;listSet</span> <span style="color: #8a2be2">*</span> <span style="color: #a9a9a9">|</span> <span style="color: #0000ff">Select-Object</span> <span style="color: #000080">-ExpandProperty</span> <span style="color: #8a2be2">Paths</span>
<span style="color: #006400"># Get one sample of the processor time</span>
<span style="color: #0000ff">Get-Counter</span> <span style="color: #8b0000">'\Processor(*)\% Processor Time'</span>
<span style="color: #006400"># Get a sample of the processor time until you press CTRL + C</span>
<span style="color: #0000ff">Get-Counter</span> <span style="color: #8b0000">'\Processor(*)\% Processor Time'</span> <span style="color: #000080">-Continuous</span>

# List all of the performance counters you can monitor

Get-Counter –listSet * | Select-Object -ExpandProperty Paths

# Get one sample of the processor time

Get-Counter '\Processor(*)\% Processor Time'

# Get a sample of the processor time until you press CTRL + C

Get-Counter '\Processor(*)\% Processor Time' -Continuous

Hope this Helps,

Differences between the ISE and PowerShell console

PowerShell TeamApril 17, 2009Apr 17, 200904/17/09

Here is a collection of differences between the PowerShell_ise.exe and PowerShell.exe, as well as workarounds
and suggestion if you need them (assuming we have them :))

Limited support for interactive console apps, try cmd.exe, then try cmd.exe /k

cmd.exe /c dir still works though,

Image Manipulation in PowerShell

PowerShell TeamMarch 30, 2009Mar 30, 200903/30/09

The other week, I showed a Get-ProgID function that I used to help someone at Microsoft Research find a good object to talk to images. A few comments jumped to one of the possible solutions, which is to use the .NET Drawing assembly (which I have to load first).

Get closure with GetNewClosure

PowerShell TeamMarch 27, 2009Mar 27, 200903/27/09

Have you ever created scriptblocks on the fly, say in a foreach loop, and they totally mess up because they all have the same value?

This is something sort of advanced, and typically used when you’re proxying an object.

Tied Variables in PowerShell

PowerShell TeamMarch 26, 2009Mar 26, 200903/26/09

With Add-Type and $executioncontext you can add special varibles that have tied values.

I made $random, and $now

add-type @”
using System;
using System.Management.Automation;
public class RandomVariable : PSVariable
{
Random r;