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I have a PS command that respond as expected, Same command into a function (with a variable) things wont work, what's wrong ?

Posted on 2015-01-26
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Last Modified: 2015-01-31
helllo all of you,


I dont understand how a variable is replaced in filter used with Get-ADcomputer.

the following function is generating an error :

function GetComputerListForAService([string] $serviceIdentifier = "A0001", [string] $machineType )
{
    $computerlist = Get-ADComputer -Filter "Name -like '*$serviceIdentifier*'" | select -expand name
    return $computerlist
}

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but the following line is giving the expected answer

PS > Get-ADComputer -Filter "Name -like '*A0001*'" | select -expand name

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what am i missing with my function ?



thank you in advance for your help.
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Comment
Question by:toshi_
  • 4
6 Comments
 
LVL 45

Expert Comment

by:aikimark
ID: 40570518
Try this
PS > Get-ADComputer -Filter {Name -like "*A0001*"} | select -expand name

Open in new window

0
 

Author Comment

by:toshi_
ID: 40570589
hello aikimark,

thank you for your reply.

i dont get any output with curly around the filter.

i'm looking to pass the "A0001" as a parameter and have it replaced in the powershell line.

Thank you for further help
0
 

Author Comment

by:toshi_
ID: 40570591
I also try this  without success:

function GetComputerListForAService([string] $serviceIdentifier = "A0001")
{
    $computerlist = Get-ADComputer -Filter {Name -like "*$($serviceIdentifier)*"} | select -expand name
    return $computerlist
}
0
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Accepted Solution

by:
toshi_ earned 0 total points
ID: 40570654
Hello, i only could make it work cumulating in a string as follow.

function GetComputerListForAService([string] $serviceIdentifier = "A0001")
{
    $regexp = "*" + $serviceIdentifier + "*"
    $computerlist = Get-ADComputer -Filter 'Name -like $regexp ' | select -expand name
    return $computerlist
}
0
 
LVL 39

Expert Comment

by:footech
ID: 40570908
Odd that you're running into a problem with what you posted originally.  It works for me (using PS 3.0).
You may want to read this question, as it explains the variations in behavior seen with filter syntax.
http://www.experts-exchange.com/Programming/Languages/Scripting/Powershell/Q_28514109.html
0
 

Author Closing Comment

by:toshi_
ID: 40581248
my question was : how can i use such selection in a function.
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