PowerShell for Windows Admins


March 12, 2014  12:23 PM

AD Management in a Month of Lunches in print



Posted by: Richard Siddaway
Active Directory, Books, PowerShell

Manning have released the print edition of Learn Active Directory Management in a Month of Lunches – http://www.manning.com/siddaway3/ – joining the pdf version released earlier.  ePub & Kindle versions scheduled for 20 March

March 12, 2014  4:49 AM

Get-ADUser issue fixed



Posted by: Richard Siddaway
Active Directory, PowerShell, Windows 8.1, Windows Server 2012 R2

The issue that I discussed in these posts:

http://richardspowershellblog.wordpress.com/2013/11/08/get-aduser-issue-2/

http://richardspowershellblog.wordpress.com/2013/11/06/get-aduser-issue/

With Get-ADUser and –Properties * in a forest level below 2012 R2 has been resolved  in this update:

http://support.microsoft.com/kb/2923122


March 9, 2014  4:59 AM

End of PowerShell Jobs week



Posted by: Richard Siddaway
PowerShell, PowerShell 3, PowerShell v2, PowerShell v4

My series on PowerShell Jobs for the Scripting Guy blog has finished.  The set of articles is:

Jobs week 1 : Introduction to PowerShell jobs http://blogs.technet.com/b/heyscriptingguy/archive/2014/03/02/powershell-jobs-week-introduction-to-powershell-jobs.aspx  http://blogs.technet.com/b/heyscriptingguy/archive/2014/03/02/powertip-control-job-starts-with-powershell.aspx

Jobs week 2 : WMi and CIM jobs http://blogs.technet.com/b/heyscriptingguy/archive/2014/03/03/powershell-jobs-week-wmi-and-cim-jobs.aspx  http://blogs.technet.com/b/heyscriptingguy/archive/2014/03/03/powertip-use-powershell-to-keep-job-data.aspx

Jobs week 3 : Remote Jobs http://blogs.technet.com/b/heyscriptingguy/archive/2014/03/04/powershell-jobs-week-remote-jobs.aspx  http://blogs.technet.com/b/heyscriptingguy/archive/2014/03/04/powertip-use-powershell-to-find-job-help.aspx

Jobs week 4 : Scheduled Jobs http://blogs.technet.com/b/heyscriptingguy/archive/2014/03/05/powershell-jobs-week-scheduled-jobs.aspx  http://blogs.technet.com/b/heyscriptingguy/archive/2014/03/05/powertip-use-powershell-to-discover-tasks-associated-with-scheduled-jobs.aspx

Jobs week 5 : Workflow Jobs http://blogs.technet.com/b/heyscriptingguy/archive/2014/03/06/powershell-jobs-week-jobs-and-workflows.aspx  http://blogs.technet.com/b/heyscriptingguy/archive/2014/03/06/powertip-stop-a-powershell-job.aspx

Jobs week 6 : Job processes http://blogs.technet.com/b/heyscriptingguy/archive/2014/03/07/powershell-jobs-week-job-processes.aspx http://blogs.technet.com/b/heyscriptingguy/archive/2014/03/07/powertip-protect-the-data-produced-by-powershell-jobs.aspx

Jobs week 7 : Jobs in the enterprise http://blogs.technet.com/b/heyscriptingguy/archive/2014/03/08/powershell-jobs-week-jobs-in-the-enterprise.aspx http://blogs.technet.com/b/heyscriptingguy/archive/2014/03/08/powertip-find-more-information-about-windows-powershell-jobs.aspx

 

Enjoy


March 5, 2014  2:34 PM

PowerShell Summit 2014 edging closer



Posted by: Richard Siddaway
PowerShell, Summit

Now we’re in March the Summit is getting closer.  Looking forward to see friends old & new and listening to some excellent sessions.

If you haven’t registered there’s still places available.

As a bonus one of the things you’ll take away is a module for working with the registry – filling one of gaps in the PowerShell cmdlets for Windows administrators


March 2, 2014  3:10 PM

PowerShell Jobs Series



Posted by: Richard Siddaway
PowerShell

Today sees the start of my series of articles on PowerShell jobs for the Scripting Guy blog.

First article is here -

http://blogs.technet.com/b/heyscriptingguy/archive/2014/03/02/powershell-jobs-week-introduction-to-powershell-jobs.aspx

 

with the associated Power Tip here

http://blogs.technet.com/b/heyscriptingguy/archive/2014/03/02/powertip-control-job-starts-with-powershell.aspx


February 28, 2014  4:44 PM

do and while



Posted by: Richard Siddaway
PowerShell Basics

Do you understand the difference between do loops and while loops?  On the surface they appear very similar.

£> do{$i++}while($i -lt 10) £> $i 10

£> $i=0 £> while($i -lt 10){$i++} £> $i 10

BUT there is a difference

£> $i=11 £> do{$i++}while($i -lt 10) £> $i 12

£> $i=11 £> while($i -lt 10){$i++} £> $i

Notice the difference in the final result

A DO loop will ALWAYS execute at least once because the test is at the end.

A while loop has the test at the beginning so may not execute at all.

I’ve seen this cause people real difficulty at times so think about where you need the test to be, if the loop needs to execute at least once and what the final value of any incrementing variables should be


February 28, 2014  2:33 PM

Automatically create folder for home drive



Posted by: Richard Siddaway
Active Directory, File System

In this post  http://richardspowershellblog.wordpress.com/2013/10/28/setting-ad-attributes-from-a-csv-file/

I showed how to modify the user’s home folder setting in Active Directory.

A comment was recently left asking about automatically creating the folder on the fileserver and creating the share that is associated with it.

This isn’t a simple exercise – you will need a script to:

You can create the folder using New-Item

New-Item -Path c:\test -Name anyolduser -Type Directory

You can share it

$max = [uint32]5

$type = [uint32]0

Invoke-CimMethod -ClassName Win32_Share -MethodName Create -Arguments @{Name=’anyolduser’; Path=’c:\test\anyolduser’; Type=$type; MaximumAllowed=$max; Description=’anyolduser – homedrive’}

And then you have to set share and NTFS permissions according to your organization’s policies


February 28, 2014  11:55 AM

File or Folder?



Posted by: Richard Siddaway
PowerShell Basics

This is a common type of use for Get-ChildItem:

Get-ChildItem -Path c:\temp

However, you could get files or folders returned.  Very often you just want to see the files

In PowerShell 1.0 & 2.0 you had to do this:

Get-ChildItem -Path c:\temp   | where {-not $_.PSIsContainer}

If you want to see the subfolders only then you reverse the condition:

Get-ChildItem -Path c:\temp  | where {$_.PSIsContainer}

In PowerShell 3.0 Get-ChildItem got some new parameters –File and –Directory. They display files only or folders only respectively. The default action is still to display files and folders.

Get-ChildItem -Path c:\temp  -File  Get-ChildItem -Path c:\temp  -Directory

I still see a lot of people making more work for themselves because they don’t use or don’t know about the new parameters.


February 27, 2014  4:20 PM

I’m afraid you can’t do that anymore



Posted by: Richard Siddaway
CIM, PowerShell, PowerShell 3, PowerShell Basics, PowerShell v4, WMI

In PowerShell 1.0 you could do this:

notepad

$proc = Get-WmiObject -Class Win32_Process -Filter “Name=’notepad.exe’”

$proc.Terminate()

To access the methods of the WMI class you had to get a variable representing the instance and call the method. This technique still works in PowerShell 4.0

When the CIM cmdlets were introduced in PowerShell 3.0 people assumed that they worked the same:

£> notepad

£> $proc = Get-CimInstance -ClassName Win32_Process -Filter “Name=’notepad.exe’”

£> $proc.Terminate()

Method invocation failed because [Microsoft.Management.Infrastructure.CimInstance] does not contain a method named

‘Terminate’.

At line:1 char:1

+ $proc.Terminate()

+ ~~~~~~~~~~~~~~~~~

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

+ FullyQualifiedErrorId : MethodNotFound

 

The CIM cmdlets retrun inert objects – NO METHODS – so you can’t do that.

The correct way to use the CIM cmdlets is:

Get-CimInstance -ClassName Win32_Process -Filter “Name=’notepad.exe’” | Invoke-CimMethod -MethodName Terminate

 


February 27, 2014  2:21 PM

Learn AD Management in a Month of Lunches–ebook available



Posted by: Richard Siddaway
Active Directory, Books, PowerShell

The ebook – PDF format – for Learn AD Management in a Month of Lunches has been published – http://www.manning.com/siddaway3/

If you bought the ebook as part of your MEAP you should be able to down load it – you’ll get or have got an email with the link. The printed version is at the printers and will be available on 12 March.

If you want the ebook in Kindle or epub versions they will be available 20 March.

Enjoy.


Forgot Password

No problem! Submit your e-mail address below. We'll send you an e-mail containing your password.

Your password has been sent to: