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Need Help modifying a powershell script to check values from excel file

Posted on 2014-12-08
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Last Modified: 2015-01-17
Hello,
I'm looking for a powershell script that would run on a login script, export the current username logged on, check if that username is listed in an excel\csv file on a share.
If it doesn't exists, then the script needs to run a command and add the name in the sheet.
If it does exists then do nothing and exit.

Unfortunately it has to be in Powershell and i'm not to keen on it, any advise please?
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Question by:johnnyjonathan
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10 Comments
 
LVL 70

Expert Comment

by:Qlemo
ID: 40486505
It's an Excel file (XLS*) or CSV we are talking about? And which PowerShell release?
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Author Comment

by:johnnyjonathan
ID: 40489034
csv or xls could be anything, doesn't matter to me.
And how can i check which powershell?
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LVL 70

Expert Comment

by:Qlemo
ID: 40489232
Check with:   powershell "$PsVersionTable"  from outside of PowerShell, or in PowerShell itself just type the var  $PsVersionTable.
If PSVersion is not 4.0, and you are on W7/W2008R2 or above, I strongly advice to upgrade to 4.0.

Automating Excel is slower and more complicated than parsing and writing a CSV file. PS 4.0 also allows to append to a CSV (prior you had to rewrite the CSV completely), hence my question for the version.
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Author Comment

by:johnnyjonathan
ID: 40497066
Thanks for the explanation.
In that case, yes let's go with CSV.

and yes, the version is 4.
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LVL 70

Assisted Solution

by:Qlemo
Qlemo earned 500 total points
ID: 40498082
I'm assuming we not even need a CSV, but a simple text file will do.
$usrfile = '\\server\share\scripts\Users.txt'
if ( (get-content $usrfile) -notcontains $env:UserName )
{
  # Do something
  echo $env:UserName >> $usrfile
}

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Author Comment

by:johnnyjonathan
ID: 40544859
Anyway to get the same script in vbs?
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LVL 70

Expert Comment

by:Qlemo
ID: 40544975
This question has an clear, enforced restriction to be about PowerShell:
Unfortunately it has to be in Powershell
If anything, I would use a cmd.exe batch. VBS requires some coding overhead, without gaining anything.
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Author Comment

by:johnnyjonathan
ID: 40555073
batch is also viable, i simply can't relay on powershell since the environment  is too old
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LVL 70

Accepted Solution

by:
Qlemo earned 500 total points
ID: 40555135
Batch file:
set usrfile=\\server\share\scripts\Users.txt
find /i "%UserName%" <%usrfile% >nul || (
  REM Do Something 
  echo %UserName%>> %usrfile%
)

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Author Closing Comment

by:johnnyjonathan
ID: 40555216
Thanks! great help and great solution!
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