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Asked: 2010-06-17 07:43:41 +0800 CST

Power Shell does not like command

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Any ideas what I did wrong here? I copied this script from a tutorial and get this error....

PS C:\Windows\system32> Get-Service | Where-Object ($_.status -eq "running")

Where-Object : Cannot bind parameter 'FilterScript'. Cannot convert value "False" to type "System.Management.Automation
.ScriptBlock". Error: "Invalid cast from 'System.Boolean' to 'System.Management.Automation.ScriptBlock'."
At line:1 char:27
+ Get-Service | Where-Object <<<<  ($_.status -eq "running")
    + CategoryInfo          : InvalidArgument: (:) [Where-Object], ParameterBindingException
    + FullyQualifiedErrorId : CannotConvertArgumentNoMessage,Microsoft.PowerShell.Commands.WhereObjectCommand
powershell command-line-interface windows-7

2 Answers

  1. Best Answer

    Try using {} instead of parentheses around your argument.

    http://technet.microsoft.com/en-us/library/ee177028.aspx

    Take careful note of the syntax. To begin, the where clause is enclosed within curly braces; in addition, the $_ notation is used to represent the default object (that is, the object being transferred across the pipeline).

    • 6

  2. You need to use { instead of (

    Get-Service | Where-Object {$_.status -eq "running"}
    • 5