Power Tips - All Comments

re: Bulk-Changing File Extensions

dbump — Tue, 07 Feb 2012 20:55:52 GMT

I wasn't able to get the script to recurse subfolders, as written.

It worked fine when using an explicit include parameter, and moving the wildcard exension to that parameter:

Dir $home\ -Recurse -Include "*.ps1" | .....

re: Create Own Driver Tool

turtlenorthwest — Tue, 31 Jan 2012 00:10:17 GMT

I took this a step further to sort by Start Mode, then Display Name.

Driverquery.exe /v /FO CSV | ConvertFrom-Csv | Select-Object 'Display Name', 'Start Mode', 'Paged Pool(bytes)', Path | Sort-Object 'Start Mode', 'Display Name' | Out-GridView

re: Convert to Numeric

Brent Challis — Thu, 19 Jan 2012 02:11:58 GMT

An extension to this is to check that the input can be cast. This can be done by wrapping the cast in a try/catch block or by using the TryParse method of the numeric data classes such as:

$snumber = (Read-Host 'Enter a number')

[Double]$number = 0

if ([Double]::TryParse($snumber,[ref] $number))

{

$number * 12

}

else

{

Write-Output "Not a Number"

}

re: Create Own Driver Tool

willsteele — Fri, 13 Jan 2012 15:59:53 GMT

Some of these tips go outside the div and I have to check the page source to see the whole tip. Is there a way to wrap the content on these one liners?

re: Replace Text in Files

PowerShellPunk — Wed, 04 Jan 2012 21:56:43 GMT

I have been working on this problem all day. Thank you for posting this helpful information.

re: Wait For Key Press

Russ77 — Tue, 03 Jan 2012 13:52:46 GMT

brutalSelect,

You may have gotten the error because you included the outside quotation marks.

Only paste this into your shell window:

$x = $host.UI.RawUI.ReadKey("NoEcho,IncludeKeyDown")

re: Creating a "Better" More

flaphead — Mon, 02 Jan 2012 17:11:41 GMT

I get the same as jbruns2010 when I paste the function in to powershell and press Q

Command halted by user.

At line:15 char:39

+ process { $steppablePipeline.Process <<<< ($_) }

+ CategoryInfo : InvalidOperation: (:) [], RuntimeException

+ FullyQualifiedErrorId : MethodInvocationException

I put the code into my profile.ps1

re: Creating a "Better" More

jbruns2010 — Tue, 27 Dec 2011 13:12:40 GMT

The original post creates a boat load of these errors when pressing the Q key,

Object reference not set to an instance of an object.

At \\corpsoftware\nt$\Scripts\PowerShell\Functions\more.ps1:16 char:37

+ process { $steppablePipeline.Process <<<< ($_) }

+ CategoryInfo : InvalidOperation: (:) [], RuntimeException

+ FullyQualifiedErrorId : MethodInvocationException

The revised one above, does not produce the errors when Q is pressed, but it does not drop you to a PS prompt. You get a blank line but Ctrl-C is needed to drop you out of the more.ps1.

re: Creating a "Better" More

pfm — Mon, 26 Dec 2011 12:24:06 GMT

The more function fails with a stream of errors. Putting try/catch in the process and end blocks, like so, seems to fix it...

process { try { $steppablePipeline.Process($_) } catch { return }}

end { try { $steppablePipeline.End() } catch {} }

re: Reading Registry Values

skiddle — Tue, 06 Dec 2011 18:00:13 GMT

Thanks for the tip! I noticed a typo:

Get-RegistryValue 'HKLM:\Sofware\Microsoft\Windows NT\CurrentVersion' should be

Get-RegistryValue 'HKLM:\Software\Microsoft\Windows NT\CurrentVersion'

re: Print All PDF Files in a Folder

Bryan Price — Tue, 29 Nov 2011 18:48:16 GMT

Also, it's -Path, not -FilePath.

re: Store Pictures in Active Directory

Trondhindenes — Tue, 29 Nov 2011 07:18:10 GMT

You don't have to save to bitmap first, it's easier to just store the jpg as byte directly:

$photo = [byte[]](Get-Content $($PicFileName) -Encoding byte)

regards,

Trond

re: Turning Multi-Value WMI Properties into Text

Lumir Kunath — Fri, 25 Nov 2011 07:08:08 GMT

How can I see missing code cuted by right side of text box of this power Tip ?

re: Changing Units

LucD — Wed, 16 Nov 2011 17:14:01 GMT

Great solution.

If you combine this with my method from my Friendly Units post (www.lucd.info/.../friendly-units), you get the best fit (and still sortable).

dir $env:windir |

Select-Object Mode, LastWriteTime, Length, Name |

ForEach-Object {

if ($_.Length -ne $null) {

$_.Length = $_.Length | Add-Member ScriptMethod ToString {

$Units = "B","KB","MB","GB","TB","PB","EB","ZB","YB"

$modifier = 0

if($this -gt 0){

$modifier = [math]::Floor([Math]::Log($this,1KB))

}

('{0,7:f2} {1,2}' -f ($this/[math]::Pow(1KB,$modifier)),

(&{if($modifier -lt $units.Count){$units[$modifier]}

else{"1KB E{0}" -f $modifier}}))

} -Force -pass

};$_} | Sort-Object Length

re: Extracting Icons

Archdeacon — Sat, 05 Nov 2011 14:48:58 GMT

Just a query about the 'Extract Icon' recent PowerShell tip published here: this

works fine but I do not get the actual icon displayed in Explorer, just a default

image. Am I missing something simple here, as other 32 x 32 type ico files are

displayed correctly?