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Powershell Script help

Posted on 2015-02-09
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Last Modified: 2015-02-10
Hi

I need to check who is logged onto various Blade Workstation's using a Powershell Script and output to a text file so that we can then format the text file to HTML using Powershell

We use this to help Users see what Blades are available who is logged in if they require a certain Blade.

I have used a .bat file in the past and cleaned the output file in Powershell, But would like to clean up the process with just one script.

One issue I have found when looking online for a solution is the ability to have the UserName field show as "No Users" when No user is logged on.

We use the "No User" to assign a Blade is Free icon in the HTML page.

I have tried to use the eq $Null but have failed so far.

Requirements

Hostname
UserName + "No User"
Time logged in

Any help on finding a solution would be very much appreciated.

Thank you
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Question by:Si Walton
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Expert Comment

by:Qlemo
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Can you provide more details how you do it now (e.g. the batch), and what you tried exactly?
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Author Comment

by:Si Walton
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Hi

We use the following batch file

winrs -r:pcbw177 hostname >> C:\Blades\UK\UK_Blades.txt  2>&1
Winrs -r:pcbw177 quser >> C:\Blades\UK\UK_Blades.txt  2>&1

It will provide the following to a txt file

PCBW00012
No User exists for *
PCBW00013
 USERNAME              SESSIONNAME        ID  STATE   IDLE TIME  LOGON TIME
 nimar                 console             3  Active      none   2/4/2015 2:52 PM

We then clean the txt file via Powershell
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Author Comment

by:Si Walton
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I have looked at many scripts but the below is close

Get-Content c:\myscripts\computers.txt | 
ForEach-Object {gwmi -computer $_ -class win32_computerSystem} | fl Name, UserName | 
out-file c:\myscripts\output8.txt

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It gives the following output

Name     : PCBW180
UserName :

Name     : PCBW00013
UserName : DE-PROD\nimar
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Qlemo earned 500 total points
Comment Utility
Testing against $Null works for me. But we can also do it the other way round:
gwmi -computer (gc c:\temp\ee\computers.txt) Win32_ComputerSystem |
  select @{n='Blade'; e={$_.Name}},
         @{n='User'; e={ if ($_.UserName) { $_.Username } else { "No user" }} }

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Author Comment

by:Si Walton
Comment Utility
That works :)

Is there away to get the date/time stamp?

Thank you
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Author Closing Comment

by:Si Walton
Comment Utility
Quick and helpful thank you Qlemo
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Expert Comment

by:Qlemo
Comment Utility
Getting login time is more complex. You need to query Win32_LogonSession with the logon ID, which is associated to the name by another WMI object I cannot remember ...
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Author Comment

by:Si Walton
Comment Utility
Hi Qlemo

Login time isn't that important so it can be removed.

Is there away to have the USERNAME in Uppercase

DE-PROD\bendb = DE-PROD\BENDB

Thank you for your help with this, your time and effort is very much appreciated
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Author Comment

by:Si Walton
Comment Utility
any ideas how we can deal with the following error

Get-WmiObject : The RPC server is unavailable. (Exception from HRESULT: 0x800706BA)

we have an issue with the Blade and it would be good to assign an "issue" symbol on the HTML page

Thank you
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