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  • Using “more” in the PowerShell ISE

    PowerShell ISE In the PowerShell console, you can pipe commands to the old-fashioned “more.com”, or better yet, to Out-Host –Paging. This will display data page by page, asking for a key press to continue: PS> Get-Process | more PS>...
  • Read User Profiles from Registry

    All versions To find out which users have a (local) user profile on your machine, and where this profile is located, try this snippet: $path = ' Registry::HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows NT\CurrentVersion\ProfileList\* ' Get-ItemProperty...
  • Reading Associated File Extensions from Registry (Part 2)

    All versions In a previous tip you learned how a one-liner can read multiple registry keys. In part 2, check out this one-liner: $lookup = Get-ItemProperty Registry :: HKCR \. [ a -f ] ?? | Select-Object -Property PSChildName , ' (default) ' ...
  • Reading Associated File Extensions from Registry

    All versions PowerShell code can be extremely dense. Here is a one-liner that reads all associated file extensions from the Windows Registry: Get-ItemProperty Registry :: HKCR \. * | Select-Object -Property PSChildName , ' (default) ' , ContentType...
  • Sort Things with Type

    All Versions Sort-Object is your one-stop solution for sorting. If it’s primitive data, simply pipe it to Sort-Object. If it is object data, specify the property you want to use for sorting: # sorting primitive data 1 , 5 , 2 , 1 , 6 , 3 , 12 ,...
  • Opening Webpages from PowerShell

    All versions Let’s assume you would like to open your favorite websites in a browser when you start your day. PowerShell can do this for you easily. It depends a bit how you would like the pages to open, though. When you use Start-Process, you can...
  • Measuring Website Response (and Execution Times)

    PowerShell 3.0 and later Sometimes it is important to know just how long a command takes. For example, to monitor web site response times, you could use Invoke-WebRequest. Measure-Command measures execution time. $url = ' http://www.powershell.com...
  • Unfolding Object Data Structure

    PowerShell 3.0 and later Objects can contain nested properties, and the data you are after may be “somewhere” inside an object. To display an object with all of its properties and subproperties expanded, convert it to JSON. This gives you...
  • Suppress Confirmation

    All PowerShell Versions Some cmdlets (like Remove-ADGroupMember) automatically ask for confirmation. This can be a problem in scripts running unattended. To suppress unwanted confirmation dialogs, explicitly set the -Confirm switch parameter to false...
  • Getting Cmdlet Help No Matter What

    PowerShell 3.0 and later Beginning in PowerShell 3.0 PowerShell no longer ships its help files. Instead, you need to download them via Update-Help, and since help files are stored inside the (protected) PowerShell folder, a normal user cannot do this...
  • Examining Wi-Fi Adapters and Power Management

    Windows 8.1/Server 2012 R2 Windows 8.1 and Server 2012 R2 come with a bunch of highly useful cmdlets for network adapter management. When you want to investigate Wi-Fi connectivity problems, for example, or try and find out why Wake-On-LAN won’t...
  • Using Finally for Crucial Cleanup Tasks

    PowerShell 2.0 and later In a previous tip we introduced an “acoustic progress bar” that made PowerShell play a sound for as long as it was busy. Here is the code again: # find first available WAV file in Windows folder $WAVPath = Get-ChildItem...
  • Playing WAV Files

    All Versions There is a simple way for PowerShell to play back WAV sound files: # find first available WAV file in Windows folder $WAVPath = Get-ChildItem -Path $env:windir -Filter * . wav -Recurse -ErrorAction SilentlyContinue | Select-Object -First...
  • Automating PowerShell ISE

    PowerShell 3.0 and later PowerShell ISE is completely scriptable and is accessible through the $psISE variable. This variable is present only within the PowerShell ISE. To get to the script content of the currently visible script, try this: PS> $psise...
  • Finding Process Owner

    PowerShell Version 3 or better Get-Process gets you a list of all running processes, but it will not reveal the process owner. To find the process owner, you would need to ask the WMI service, for example. To make this easier, here is a little helper...
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