Articles

PowerShell articles, tutorials, and guides from community experts.

Richard Siddaway

Select-String confusion

I have seen a lot of confusion recently over the use of Select-String. One mis-conception is that you need to use Get-Content to pipe the file contents into Select-String. Not so. Select-String will read the file for you. If you just want to scan the files in a single folder to find a specific …

Richard Siddaway

Number of processors in a box

WMI enables you find the number of processors in your system: PS> Get-WmiObject -Class Win32_ComputerSystem | fl Number* NumberOfLogicalProcessors : 2 NumberOfProcessors : 1 This works fine for Windows Vista/Windows 2008 and above. Earlier versions of Windows mis-report the number of processors …

Richard Siddaway

Finding the domain controller that authenticated you

A question on my blog asked how do you know which domain controller you are running against when you search Active Directory. Unless you explicitly instruct your script to use a specific domain controller it will use the one to which you authenticated. You can find the DC to which you authenticated …

Don Jones
PowerShell for Admins

Writing 10961: Trademarks

Microsoft’s a big company, and that makes it a big target for lawsuits. We all know that. But what doesn’t always sink in is how careful the company has to be. For example, in Microsoft Official Curriculum course 10961, Automating Administration with Windows PowerShell 3.0, I have to …

Richard Siddaway

Displaying data from multiple servers as HTML

A forum question regarding retrieving WMI based data from multiple servers and displaying it as HTML was interesting. I would approach it like this `$servers = Get-Content -Path C:\scripts\servers.txt $data = @( ) foreach ( $server in $servers ) { $compdata = New-Object -TypeName PSObject -Property …

Richard Siddaway

PowerShell workflow articles

I"™ve written a series of articles on PowerShell workflows that are appearing on the Scripting Guy blog. The first two in the series have been published at: http://blogs.technet.com/b/heyscriptingguy/archive/2012/12/26/powershell-workflows-the-basics.aspx …

Don Jones
PowerShell for Admins

Writing 10961: First Module in For Review

Microsoft course 10961, which will be a 5-day course on PowerShell 3.0, is officially in development! We received signoff on the outline this week, and I’ve submitted a first module for review. A big part of that review is making sure I’m using the template properly, as the authoring …

Don Jones
PowerShell for Admins

PowerShell.org: Our First Year in Review

In September 2012, we incorporated PowerShell.org, Inc., and founded PowerShell.org. Our goal was to provide a solid Q&A forum, and to act as a portal to the rest of the PowerShell community. By any measure, we’ve had a great first showing. We have more than a dozen shareholders in …

Don Jones
PowerShell for Admins

Writing 10961: Remoting

As I write this, we’re close to sign-off on the outline of 10961A, which is a new 5-day Microsoft course on PowerShell v3. I sat down yesterday and starting doing some detailed-level design work on the proposed Module 9, which will cover PowerShell Remoting. I love Remoting (and yes, I …