MDT WinPE TSEnv variables and pathing some powershell scripts.

Hi again everyone!
I have a question about running some powershell scripts inside of MDT. Now I know that you can create a powershell command in the task sequence, and that will create the proper elevations and such, but I would like some organization here. I have
been creating my OS modification scripts inside of an Image Utilities folder under applications and then calling them with a powershell.exe windowstyle -hidden script.ps1. The scripts will run, but I have alot of custom unpackaged stuff that I'm trying
to quickly move and create on the freshly deployed OS. My issue comes in with using things like copy-item .\items -destination c:\itemdest\ . I have a folder that I created with some items that need to be in the OS image process, plus the
powershell script. I was thinking maybe I could do some sort of set unc=%~dp0 or something and make a $env:unc or something, but I was hoping someone might've solved this already. Thanks in advance for any help.
Ryan

Hi Ryan,
Sorry but you're not being clear enought for me. I usually need things dumbing down for me to understand. :)
=%~dp0 is the current folder. I'll assuming from that, you're trying to get the same thing in PowerShell.
There's a number of ways depending of what you're trying to do.
$PWD is usefull from the command line
The $MyInvocation object holds a wealth of info from the path to the executable/function used.
There's a blog on it here How can a script tell what directory it was run from?
Also, the best place for help on this kind of thing is the scripting guys forum. I hope this puts you in the right direction.
/Andrew
Blog: http://scriptimus.wordpress.com

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dushdushyant wrote:
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Hello,
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Powershell script to get the low disk space on the servers...

Hi,
We have many SQL & Sharepoint servers running on windows server. I need some Powershell script to get the low disk space on those servers and it should send an mail alert saying "Disc d:\ have less than threshold 15% free space".
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Thanks
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you should be able to use this powershell script which you can run as a scheduled task.
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$smtp_user = ""
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$html_file
# Function to be used to convert bytes to MB or GB or TB
Function ConvertBytes {
param($size)
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$drive_size = $size / 1KB
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[string]$drive_size + ' KB'
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[string]$drive_size + ' TB'
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$html_header = '<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">
<html lang="en-US" xml:lang="en-US" xmlns="http://www.w3.org/1999/xhtml">
<head>
<title>Server Drive Space</title>
<style type="text/css">
.serverName { text-align:center; font-family:"' + $server_name_font + '"; font-size:' + $server_name_font_size + `
'; font-weight:bold; background-color: ' + $server_name_bg_color + '; border: 1px solid black; width: 150px; }
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.data { font-family:"' + $data_font + '"; font-size:' + $data_font_size + '; border: 1px solid black; width: 150px; }
#dataTable { border: 1px solid black; border-collapse:collapse; }
body { background-color: ' + $background_color + '; }
#legend { border: 1px solid black; ; right:500px; top:10px; }
</style>
<script language="JavaScript" type="text/javascript">

</script>
</head>
<body>'
$html_footer = '</body>
</html>'
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Add-Content $html_file $html_header
# Retrieve the contents of the server.txt file, this file should contain either the
# ip address or the host name of the machine on a single line. Loop through the file
# and get the drive information.
Get-Content $server_file |`
ForEach-Object {
# Get the hostname of the machine
$hostname = Get-WmiObject -Impersonation Impersonate -ComputerName $_ -Query "SELECT Name From Win32_ComputerSystem"
$name = $hostname.Name.ToUpper()
Add-Content $html_file ('<Table id="dataTable"><tr><td colspan="3" class="serverName">' + $name + '</td></tr>
<tr><td class="headings">Drive Letter</td><td class="headings">Total Size</td><td class="headings">Free Space</td></tr>')
# Get the drives of the server
$drives = Get-WmiObject Win32_LogicalDisk -Filter "drivetype=3" -ComputerName $_ -Impersonation Impersonate
# Now that I have all the drives, loop through and add to report
ForEach ($drive in $drives) {
$space_color = ""
$free_space = $drive.FreeSpace
$total_space = $drive.Size
$percentage_free = $free_space / $total_space
$percentage_free = $percentage_free * 100
If ($percentage_free -le 5) {
$space_color = $very_low_space
}elseif ($percentage_free -le 10) {
$space_color = $low_space
}elseif ($percentage_free -le 15) {
$space_color = $medium_space
Add-Content $html_file ('<tr><td class="data">' + $drive.deviceid + '</td><td class="data">' + (ConvertBytes $drive.size) + `
'</td><td class="data" bgcolor="' + $space_color + '">' + (ConvertBytes $drive.FreeSpace) + '</td></tr>')
# Close the table
Add-Content $html_file ('</table></br><div id="legend">
<Table><tr><td style="font-size:12px">Less then or equal to 5 % free space</td><td bgcolor="' + $very_low_space + '" width="10px"></td></tr>
<tr><td style="font-size:12px">Less then or equal to 10 % free space</td><td bgcolor="' + $low_space + '" width="10px"></td></tr>
<tr><td style="font-size:12px">Less then or equal to 15 % free space</td><td bgcolor="' + $medium_space + '" width="10px"></td></tr>
</table></div>')
# End the reports file
Add-Content $html_file $html_footer
# Email the file
$mail = New-Object System.Net.Mail.MailMessage
$att = new-object Net.Mail.Attachment($html_file)
$mail.From = $from_address
$mail.To.Add($to_address)
$mail.Subject = "Server Diskspace $date"
$mail.Body = "The diskspace report file is attached."
$mail.Attachments.Add($att)
$smtp = New-Object System.Net.Mail.SmtpClient($email_gateway)
#$smtp.Credentials = New-Object System.Net.NetworkCredential($smtp_user,$smtp_pass)
$smtp.Send($mail)
$att.Dispose()
# Delete the file
Remove-Item $html_file
Regards,
Denis Cooper
MCITP EA - MCT
Help keep the forums tidy, if this has helped please mark it as an answer
My Blog
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Using Echo Command in PowerShell Script for Configuration Item

Hello All,
Before you tell me to post my PowerShell question to the PowerShell Forum, please know that the PowerShell portion of my task works just fine. It is the SCCM portion of my task that keeps failing, so that is why I am here. To give some background...
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Google searches for this have not been very helpful.
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Sorry for my ignorance, but I don't understand. (I forgot to mention that I am new at both PowerShell and SCCM.)
After I change the PowerShell script to add the echo/write-output/write-host cmdlet, I open the ConFig Item and "Clear" the PowerShell script and then re-add it. When I do that, it correctly shows the change in the ConFig Item.
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Does that sound right? If I manually deploy the Baseline, is that the same as the client retrieving policies from the management point?
Sorry to be so thick but I'm learning as I go.
Thanks again for your help.

How to sign a powershell script to be used for distribution

Hi,
I am new to powershell so if I'm missing out on any detail, please let me know.
We have some powershell scripts we send over to the clients to execute. Their powershell enviroment has execution policy set to 'remote signed'
Now I have read multiple blogs for how to sign the powershell script to be used at different execution levels, but my understanding is signing is for my environment only.
http://www.hanselman.com/blog/SigningPowerShellScripts.aspx
http://blogs.technet.com/b/heyscriptingguy/archive/2010/06/17/hey-scripting-guy-how-can-i-sign-windows-powershell-scripts-with-an-enterprise-windows-pki-part-2-of-2.aspx
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Thanks in advance!

Here's a bit more information on the subject:
http://technet.microsoft.com/en-us/library/hh847874.aspx
http://msdn.microsoft.com/en-us/library/ms537361.aspx
You can get code signing certificates from the major vendors.
Don't retire TechNet! -
(Don't give up yet - 13,085+ strong and growing)

OSD - Task Sequence to run powershell script

Hello,
I'm building up an image with OSD and will be layering some components to meet our needs with some powershell scripts. At the moment we will not have this device add itself to the domain so it'll be in a workgroup. The scripts are on a share that everyone has
read access to. Should I add a task sequence that will map a drive letter with domain credentials and have the task sequence call the script from that drive letter?

That is possible to do, but why would you not create a package/application with the script and let it download and run locally?
Daniel Ratliff | http://www.PotentEngineer.com

After creating a Powershell script monitor - how to import in Operation Manager 2012 ?

Hello!
I just completed all the steps in this article:
http://social.technet.microsoft.com/wiki/contents/articles/16752.management-pack-composition-exercise-2-creating-a-monitor-based-on-a-windows-powershell-script.aspx?CommentPosted=true#commentmessage
So now I guess that the just created Management Pack should be imported in Operation Manager 2012, and then also folders and views should be created in order to have it showing green/red based on the values returned by the script.
In the article there's no pointer to that procedure, so can you please provide a good link where the steps are explained?
thanks!

Have a look at the following video, it steps through how to create rules and monitors using PowerShell scripts
https://technet.microsoft.com/en-us/video/how-do-i-create-a-rule-and-monitor-using-a-windows-powershell-script-in-a-system-center-operations-manager-management-pack.aspx
Cheers,
Martin
Blog:
http://sustaslog.wordpress.com
LinkedIn:
Note: Posts are provided “AS IS” without warranty of any kind, either expressed or implied, including but not limited to the implied warranties of merchantability and/or fitness for a particular purpose.

Remote PowerShell script execution from web page

I am building a web interface for Active Directory for a school project. (It will NOT touch the Internet, it is for intranet use.) I want to click a "button" on my interface and execute a PowerShell script on a server. (example: Clicking on "AD Users" would execute a PS script to get a list of users) Does anyone know a good approach to accomplish this? I can nandle writing the PowerShell scripts, I am just not sure what the best way to call them from a web interface would be. Any reference or information would be appreciated.

hi igor
i am actually working on a simillar project , i'm planning to publish it as an open source in codeplex
the idea is that you have to know another programming language like VB , C# ... in my case i used ironpython
ASP.NET , while ironpython calls powershells command using system.managment.automation through runspace
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I should have been using $line.grade, but your syntax worked so thanks!

I've been running a powershell script to create active directory accounts at our school from a csv file. I'm needing to have users placed in a specific OU based on what grade level they are in, which is a field in the csv file and I have passed into the description field in AD. To keep from writing a bunch of if statements, I thought I might could pass the description variable into my organizational unit path, but I'm having syntax issues.Here is the specific line I have issues with.Powershell'ou' = "OU=$line.description, OU=LESStudents,OU=LES,DC=school,DC=k12,DC=state,DC=us"I've tried the single quote, double quotes, escaping the equal sign and some other methods I've seen online, but haven't quite gotten it right. It just isn't recognizing OU=$line.description as a variable.
Disclaimer - I'm not a programmer and most of this was built...
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