名前
    Where-Object
    
概要
    Selects objects from a collection based on their property values.
    
構文
    Where-Object [-Property] <String> [[-Value] [<Object>]] [-EQ] [-InputObject [<PSObject>]] [<CommonParameters>]
    
    Where-Object [-Property] <String> [[-Value] [<Object>]] [-InputObject [<PSObject>]] -Contains [<CommonParameters
    >]
    
    Where-Object [-FilterScript] <ScriptBlock> [-InputObject [<PSObject>]] [<CommonParameters>]
    
    Where-Object [-Property] <String> [[-Value] [<Object>]] [-InputObject [<PSObject>]] -GE [<CommonParameters>]
    
    Where-Object [-Property] <String> [[-Value] [<Object>]] [-InputObject [<PSObject>]] -GT [<CommonParameters>]
    
    Where-Object [-Property] <String> [[-Value] [<Object>]] [-InputObject [<PSObject>]] -In [<CommonParameters>]
    
    Where-Object [-Property] <String> [[-Value] [<Object>]] [-InputObject [<PSObject>]] -CContains [<CommonParameter
    s>]
    
    Where-Object [-Property] <String> [[-Value] [<Object>]] [-InputObject [<PSObject>]] -CEQ [<CommonParameters>]
    
    Where-Object [-Property] <String> [[-Value] [<Object>]] [-InputObject [<PSObject>]] -CGE [<CommonParameters>]
    
    Where-Object [-Property] <String> [[-Value] [<Object>]] [-InputObject [<PSObject>]] -CGT [<CommonParameters>]
    
    Where-Object [-Property] <String> [[-Value] [<Object>]] [-InputObject [<PSObject>]] -CIn [<CommonParameters>]
    
    Where-Object [-Property] <String> [[-Value] [<Object>]] [-InputObject [<PSObject>]] -CLE [<CommonParameters>]
    
    Where-Object [-Property] <String> [[-Value] [<Object>]] [-InputObject [<PSObject>]] -CLike [<CommonParameters>]
    
    Where-Object [-Property] <String> [[-Value] [<Object>]] [-InputObject [<PSObject>]] -CLT [<CommonParameters>]
    
    Where-Object [-Property] <String> [[-Value] [<Object>]] [-InputObject [<PSObject>]] -CMatch [<CommonParameters>]
    
    Where-Object [-Property] <String> [[-Value] [<Object>]] [-InputObject [<PSObject>]] -CNE [<CommonParameters>]
    
    Where-Object [-Property] <String> [[-Value] [<Object>]] [-InputObject [<PSObject>]] -CNotContains [<CommonParame
    ters>]
    
    Where-Object [-Property] <String> [[-Value] [<Object>]] [-InputObject [<PSObject>]] -CNotIn [<CommonParameters>]
    
    Where-Object [-Property] <String> [[-Value] [<Object>]] [-InputObject [<PSObject>]] -CNotLike [<CommonParameters
    >]
    
    Where-Object [-Property] <String> [[-Value] [<Object>]] [-InputObject [<PSObject>]] -CNotMatch [<CommonParameter
    s>]
    
    Where-Object [-Property] <String> [[-Value] [<Object>]] [-InputObject [<PSObject>]] -Is [<CommonParameters>]
    
    Where-Object [-Property] <String> [[-Value] [<Object>]] [-InputObject [<PSObject>]] -IsNot [<CommonParameters>]
    
    Where-Object [-Property] <String> [[-Value] [<Object>]] [-InputObject [<PSObject>]] -LE [<CommonParameters>]
    
    Where-Object [-Property] <String> [[-Value] [<Object>]] [-InputObject [<PSObject>]] -Like [<CommonParameters>]
    
    Where-Object [-Property] <String> [[-Value] [<Object>]] [-InputObject [<PSObject>]] -LT [<CommonParameters>]
    
    Where-Object [-Property] <String> [[-Value] [<Object>]] [-InputObject [<PSObject>]] -Match [<CommonParameters>]
    
    Where-Object [-Property] <String> [[-Value] [<Object>]] [-InputObject [<PSObject>]] -NE [<CommonParameters>]
    
    Where-Object [-Property] <String> [[-Value] [<Object>]] [-InputObject [<PSObject>]] -NotContains [<CommonParamet
    ers>]
    
    Where-Object [-Property] <String> [[-Value] [<Object>]] [-InputObject [<PSObject>]] -NotIn [<CommonParameters>]
    
    Where-Object [-Property] <String> [[-Value] [<Object>]] [-InputObject [<PSObject>]] -NotLike [<CommonParameters>
    ]
    
    Where-Object [-Property] <String> [[-Value] [<Object>]] [-InputObject [<PSObject>]] -NotMatch [<CommonParameters
    >]
    
    
説明
    The Where-Object cmdlet selects objects that have particular property values from the collection of objects that
     are passed to it. For example you can use the Where-Object cmdlet to select files that were created after a cer
    tain date, events with a particular ID, or computers with a particular version of Windows.
    
    Beginning in Windows PowerShell 3.0, there are two different ways to construct a Where-Object command.
    
    Script block. You can use a script block to specify the property name, a comparison operator, and a property val
    ue. Where-Object returns all objects for which the script block statement is true.
    
    For example, the following command gets processes in the Normal priority class, that is, processes where the val
    ue of the PriorityClass property equals "Normal".
    
    Get-Process | Where-Object {$_.PriorityClass -eq "Normal"}
    
    All Windows PowerShell comparison operators are valid in the script block format. For more information about com
    parison operators, see about_Comparison_Operators (http://go.microsoft.com/fwlink/?LinkID=113217).
    
    Comparison statement. You can also write a comparison statement, which is much more like natural language. Compa
    rison statements were introduced in Windows PowerShell 3.0.
    
    For example, the following commands also get processes that have a priority class of "Normal". These commands ar
    e equivalent and can be used interchangeably.
    
    Get-Process | Where-Object -Property PriorityClass -eq -Value "Normal"
    
    Get-Process | Where-Object PriorityClass -eq "Normal"
    
    Beginning in Windows PowerShell 3.0, Where-Object adds comparison operators as parameters in a Where-Object comm
    and. Unless specified, all operators are case-insensitive. Prior to Windows PowerShell 3.0, the comparison opera
    tors in the Windows PowerShell language could be used only in script blocks.
    

パラメーター
    -Contains <SwitchParameter>
        Specifies the Contains operator, which gets objects when any item in the property value of the object is an 
        exact match for the specified value.
        
        For example: Get-Process | where ProcessName -contains "Svchost"
        
        If the property value contains a single object, Windows PowerShell converts it to a collection of one object
        .
        
        This parameter is introduced in Windows PowerShell 3.0.
        
        必須                         true
        位置                         named
        既定値                       none
        パイプライン入力を許可する   false
        ワイルドカード文字を許可する false
        
    -EQ [<SwitchParameter>]
        Specifies the equals operator, which gets objects when the property value is the same as the specified value
        .
        
        This parameter is introduced in Windows PowerShell 3.0.
        
        必須                         false
        位置                         named
        既定値                       none
        パイプライン入力を許可する   false
        ワイルドカード文字を許可する false
        
    -FilterScript <ScriptBlock>
        Specifies the script block that is used to filter the objects. Enclose the script block in braces ( {} ).
        
        The parameter name (-FilterScript) is optional.
        
        必須                         true
        位置                         1
        既定値                       none
        パイプライン入力を許可する   false
        ワイルドカード文字を許可する false
        
    -GE <SwitchParameter>
        Specifies the Greater-than-or-equal operator, which gets objects when the property value is greater than or 
        equal to the specified value.
        
        This parameter is introduced in Windows PowerShell 3.0.
        
        必須                         true
        位置                         named
        既定値                       none
        パイプライン入力を許可する   false
        ワイルドカード文字を許可する false
        
    -GT <SwitchParameter>
        Specifies the Greater-than operator, which gets objects when the property value is greater than the specifie
        d value.
        
        This parameter is introduced in Windows PowerShell 3.0.
        
        必須                         true
        位置                         named
        既定値                       none
        パイプライン入力を許可する   false
        ワイルドカード文字を許可する false
        
    -In <SwitchParameter>
        Specifies the In operator, which gets objects when the property value matches any of the specified values.
        
        For example: Get-Process | where -Property ProcessName -in -Value "Svchost", "TaskHost", "WsmProvHost"
        
        If the value of the Value parameter is a single object, Windows PowerShell converts it to a collection of on
        e object.
        
        If the property value of an object is an array, Windows PowerShell uses reference equality to determine a ma
        tch. Where-Object returns the object only if the value of the Property parameter and any value of the Value 
        parameter are the same instance of an object.
        
        This parameter is introduced in Windows PowerShell 3.0.
        
        必須                         true
        位置                         named
        既定値                       none
        パイプライン入力を許可する   false
        ワイルドカード文字を許可する false
        
    -InputObject [<PSObject>]
        Specifies the objects to be filtered. You can also pipe the objects to Where-Object. When you use the InputO
        bject parameter with Where-Object, instead of piping command results to Where-Object, the InputObject value―
        even if the value is a collection that is the result of a command, such as InputObject (Get-Process)―is tre
        ated as a single object. Because InputObject cannot return individual properties from an array or collection
         of objects, it is recommended that if you use Where-Object to filter a collection of objects for those obje
        cts that have specific values in defined properties, you use Where-Object in the pipeline, as shown in the e
        xamples in this topic.
        
        必須                         false
        位置                         named
        既定値                       none
        パイプライン入力を許可する   true (ByValue)
        ワイルドカード文字を許可する false
        
    -Is <SwitchParameter>
        Specifies the Is operator, which gets objects when the property value is an instance of the specified .NET F
        ramework type. Enclose the type name in square brackets.
        
        For example, Get-Process | where StartTime -Is [DateTime]
        
        This parameter is introduced in Windows PowerShell 3.0.
        
        必須                         true
        位置                         named
        既定値                       none
        パイプライン入力を許可する   false
        ワイルドカード文字を許可する false
        
    -IsNot <SwitchParameter>
        Specifies the Is-Not operator, which gets objects when the property value is not an instance of the specifie
        d .NET Framework type.
        
        For example, Get-Process | where StartTime -IsNot [System.String]
        
        This parameter is introduced in Windows PowerShell 3.0.
        
        必須                         true
        位置                         named
        既定値                       none
        パイプライン入力を許可する   false
        ワイルドカード文字を許可する false
        
    -LE <SwitchParameter>
        Specifies the Less-than-or-equals operator.
        
        This parameter is introduced in Windows PowerShell 3.0.
        
        必須                         true
        位置                         named
        既定値                       none
        パイプライン入力を許可する   false
        ワイルドカード文字を許可する false
        
    -LT <SwitchParameter>
        Specifies the Less-than operator, which gets objects when the property value is less than the specified valu
        e.
        
        This parameter is introduced in Windows PowerShell 3.0.
        
        必須                         true
        位置                         named
        既定値                       none
        パイプライン入力を許可する   false
        ワイルドカード文字を許可する false
        
    -Like <SwitchParameter>
        Specifies the Like operator, which gets objects when the property value matches a value that includes wildca
        rd characters.
        
        For example: Get-Process | where ProcessName -like "*host"
        
        This parameter is introduced in Windows PowerShell 3.0.
        
        必須                         true
        位置                         named
        既定値                       none
        パイプライン入力を許可する   false
        ワイルドカード文字を許可する false
        
    -Match <SwitchParameter>
        Specifies the Match operator, which gets objects when the property value matches the specified regular expre
        ssion. When the input is scalar, the matched value is saved in $Matches automatic variable.
        
        For example: Get-Process | where ProcessName -match "shell"
        
        This parameter is introduced in Windows PowerShell 3.0.
        
        必須                         true
        位置                         named
        既定値                       none
        パイプライン入力を許可する   false
        ワイルドカード文字を許可する false
        
    -NE <SwitchParameter>
        Specifies the Not-equals operator, which gets objects when the property value is different than the specifie
        d value.
        
        This parameter is introduced in Windows PowerShell 3.0.
        
        必須                         true
        位置                         named
        既定値                       none
        パイプライン入力を許可する   false
        ワイルドカード文字を許可する false
        
    -NotContains <SwitchParameter>
        Specifies the  Not-Contains operator, which gets objects when none of the items in the  property value is an
         exact match for the specified value.
        
        For example: Get-Process | where ProcessName -NotContains "Svchost"
        
        "NotContains" refers to a collection of values and is true when the collection does not contain any items th
        at are an exact match for the specified value.  If the input is a single object, Windows PowerShell converts
         it to a collection of one object.
        
        This parameter is introduced in Windows PowerShell 3.0.
        
        必須                         true
        位置                         named
        既定値                       none
        パイプライン入力を許可する   false
        ワイルドカード文字を許可する false
        
    -NotIn <SwitchParameter>
        Specifies the  Not-In operator, which gets objects when the property value is not an exact match for any of 
        the specified values.
        
        For example: Get-Process | where -Value "svchost" -NotIn -Property ProcessName
        
        If the value of the Value parameter is a single object, Windows PowerShell converts it to a collection of on
        e object.
        
        If the property value of an object is an array, Windows PowerShell uses reference equality to determine a ma
        tch. Where-Object returns the object only if the value of the Property parameter and any value of the Value 
        parameter are not the same instance of an object.
        
        This parameter is introduced in Windows PowerShell 3.0.
        
        必須                         true
        位置                         named
        既定値                       none
        パイプライン入力を許可する   false
        ワイルドカード文字を許可する false
        
    -NotLike <SwitchParameter>
        Specifies the Not-Like operator, which gets objects when the property value does not match a value that incl
        udes wildcard characters.
        
        For example: Get-Process | where ProcessName -NotLike "*host"
        
        This parameter is introduced in Windows PowerShell 3.0.
        
        必須                         true
        位置                         named
        既定値                       none
        パイプライン入力を許可する   false
        ワイルドカード文字を許可する false
        
    -NotMatch <SwitchParameter>
        Specifies the not-match operator, which gets objects when the property value does not match the specified re
        gular expression. When the input is scalar, the matched value is saved in $Matches automatic variable.
        
        For example: Get-Process | where ProcessName -NotMatch "PowerShell"
        
        This parameter is introduced in Windows PowerShell 3.0.
        
        必須                         true
        位置                         named
        既定値                       none
        パイプライン入力を許可する   false
        ワイルドカード文字を許可する false
        
    -Property <String>
        Specifies the name of an object property.
        
        The parameter name (-Property) is optional.
        
        This parameter is introduced in Windows PowerShell 3.0.
        
        必須                         true
        位置                         1
        既定値                       none
        パイプライン入力を許可する   false
        ワイルドカード文字を許可する false
        
    -Value [<Object>]
        Specifies a property value.
        
        The parameter name (-Value) is optional.
        
        This parameter is introduced in Windows PowerShell 3.0.
        
        必須                         false
        位置                         2
        既定値                       none
        パイプライン入力を許可する   false
        ワイルドカード文字を許可する false
        
    -CContains <SwitchParameter>
        Specifies the case-sensitive Contains operator, which gets objects from a collection when the property value
         of the object is an exact match for the specified value
        
        For example: Get-Process | where ProcessName -contains "svchost"
        
        "Contains" refers to a collection of values and is true when the collection contains an item that is an exac
        t match for the specified value.  If the input is a single object, Windows PowerShell converts it to a colle
        ction of one object.
        
        This parameter is introduced in Windows PowerShell 3.0.
        
        必須                         true
        位置                         named
        既定値                       none
        パイプライン入力を許可する   false
        ワイルドカード文字を許可する false
        
    -CEQ <SwitchParameter>
        Specifies the case-sensitive Equals operator, which gets objects when the property value is the same as the 
        specified value.
        
        This parameter is introduced in Windows PowerShell 3.0.
        
        必須                         true
        位置                         named
        既定値                       none
        パイプライン入力を許可する   false
        ワイルドカード文字を許可する false
        
    -CGE <SwitchParameter>
        Specifies the case-sensitive Greater-than-or-equal value, which gets objects when the property value is grea
        ter than or equal to the specified value.
        
        This parameter is introduced in Windows PowerShell 3.0.
        
        必須                         true
        位置                         named
        既定値                       none
        パイプライン入力を許可する   false
        ワイルドカード文字を許可する false
        
    -CGT <SwitchParameter>
        Specifies the case-sensitive Greater-than property, which gets objects when the property value is greater th
        an the specified value.
        
        This parameter is introduced in Windows PowerShell 3.0.
        
        必須                         true
        位置                         named
        既定値                       none
        パイプライン入力を許可する   false
        ワイルドカード文字を許可する false
        
    -CIn <SwitchParameter>
        Specifies the case-sensitive In operator, which gets objects when the property value includes the specified 
        value.
        
        For example: Get-Process | where -Value "svchost" -CIn ProcessName
        
        The In operator is much like the Contains operator, except that the property and value positions are reverse
        d. For example, the following statements are both true.
        
        "abc", "def" -CContains "abc"
        
        "abc" -CIn "abc", "def"
        
        This parameter is introduced in Windows PowerShell 3.0.
        
        必須                         true
        位置                         named
        既定値                       none
        パイプライン入力を許可する   false
        ワイルドカード文字を許可する false
        
    -CLE <SwitchParameter>
        Specifies the case-sensitive Less-than-or-equal operator, which gets objects when the property value is less
        -than or equal to the specified value.
        
        This parameter is introduced in Windows PowerShell 3.0.
        
        必須                         true
        位置                         named
        既定値                       none
        パイプライン入力を許可する   false
        ワイルドカード文字を許可する false
        
    -CLT <SwitchParameter>
        Specifies the case-sensitive Less-than operator, which gets objects when the property value is less-than the
         specified value.
        
        This parameter is introduced in Windows PowerShell 3.0.
        
        必須                         true
        位置                         named
        既定値                       none
        パイプライン入力を許可する   false
        ワイルドカード文字を許可する false
        
    -CLike <SwitchParameter>
        Specifies the case-sensitive Like operator, which gets objects when the property value matches a value that 
        includes wildcard characters.
        
        For example: Get-Process | where ProcessName -CLike "*host"
        
        This parameter is introduced in Windows PowerShell 3.0.
        
        必須                         true
        位置                         named
        既定値                       none
        パイプライン入力を許可する   false
        ワイルドカード文字を許可する false
        
    -CMatch <SwitchParameter>
        Specifies the case-sensitive Match operator, which gets objects when the property value matches the specifie
        d regular expression. When the input is scalar, the matched value is saved in $Matches automatic variable.
        
        For example: Get-Process | where ProcessName -CMatch "Shell"
        
        This parameter is introduced in Windows PowerShell 3.0.
        
        必須                         true
        位置                         named
        既定値                       none
        パイプライン入力を許可する   false
        ワイルドカード文字を許可する false
        
    -CNE <SwitchParameter>
        Specifies the case-sensitive Not-Equals operator, which gets objects when the property value is different th
        an the specified value.
        
        This parameter is introduced in Windows PowerShell 3.0.
        
        必須                         true
        位置                         named
        既定値                       none
        パイプライン入力を許可する   false
        ワイルドカード文字を許可する false
        
    -CNotContains <SwitchParameter>
        Specifies the case-sensitive Not-Contains operator, which gets objects when the property value of the object
         is not an exact match for the specified value.
        
        For example: Get-Process | where ProcessName -CNotContains "svchost"
        
        "NotContains" and "CNotContains refer to a collection of values and are true when the collection does not co
        ntains any items that are an exact match for the specified value. If the input is a single object, Windows P
        owerShell converts it to a collection of one object.
        
        This parameter is introduced in Windows PowerShell 3.0.
        
        必須                         true
        位置                         named
        既定値                       none
        パイプライン入力を許可する   false
        ワイルドカード文字を許可する false
        
    -CNotIn <SwitchParameter>
        Specifies the case-sensitive Not-In operator, which gets objects when the property value is not an exact mat
        ch for the specified value.
        
        For example: Get-Process | where -Value "svchost" -CNotIn -Property ProcessName
        
        The Not-In  and CNot-In operators are much like the Not-Contains and CNot-Contains operators, except that th
        e property and value positions are reversed. For example, the following statements are true.
        
        "abc", "def" -CNotContains "Abc"
        
        "abc" -CNotIn "Abc", "def"
        
        必須                         true
        位置                         named
        既定値                       none
        パイプライン入力を許可する   false
        ワイルドカード文字を許可する false
        
    -CNotLike <SwitchParameter>
        Specifies the case-sensitive Not-Like operator, which gets objects when the property value does not match a 
        value that includes wildcard characters.
        
        For example: Get-Process | where ProcessName -CNotLike "*host"
        
        This parameter is introduced in Windows PowerShell 3.0.
        
        必須                         true
        位置                         named
        既定値                       none
        パイプライン入力を許可する   false
        ワイルドカード文字を許可する false
        
    -CNotMatch <SwitchParameter>
        Specifies the case-sensitive Not-match operator, which gets objects when the property value does not match t
        he specified regular expression. When the input is scalar, the matched value is saved in $Matches automatic 
        variable.
        
        For example: Get-Process | where ProcessName -CNotMatch "Shell"
        
        This parameter is introduced in Windows PowerShell 3.0.
        
        必須                         true
        位置                         named
        既定値                       none
        パイプライン入力を許可する   false
        ワイルドカード文字を許可する false
        
    <CommonParameters>
        このコマンドレットは、次の共通パラメーターをサポートします: Verbose、
        Debug、ErrorAction、ErrorVariable、WarningAction、WarningVariable、
        OutBuffer, PipelineVariable、および OutVariable。詳細については、
        about_CommonParameters (http://go.microsoft.com/fwlink/?LinkID=113216) 
        を参照してください。 
    
入力
    System.Management.Automation.PSObject
        
        
    
        You can pipe the objects to be filtered to Where-Object.
    
    
出力
    Object
        
        
    
        Where-Object returns selected items from the input object set.
    
    
メモ
    
    
        Beginning in Windows PowerShell 4.0, Where() operator behavior has changed. Collection.Where('property matc
        h name') no longer accepts string expressions in the format "Property CompareOperator Value". However, the 
        Where() operator accepts string expressions in the format of a scriptblock; this is still supported. The fol
        lowing examples show the behavior that has changed.
        
        The following two examples show Where() object behavior that is no longer supported.
        
        (Get-Process).Where('ProcessName match PowerShell')
        
        (Get-Process).Where('ProcessName match PowerShell', 'Last', 1)
        
        The following three examples show Where() object behavior that is supported in Windows PowerShell 4.0 and fo
        rward.
        
        (Get-Process).Where({$_.ProcessName match "PowerShell"})
        
        (Get-Process).Where{$_.ProcessName match "PowerShell"}
        
        (Get-Process).Where({$_.ProcessName match "PowerShell"}, ‘Last’, 1)
    
    -------------------------- EXAMPLE 1 --------------------------
    
    PS C:\>Get-Service | Where-Object {$_.Status -eq "Stopped"}
    PS C:\>Get-Service | where Status -eq "Stopped"
    
    
    This command gets a list of all services that are currently stopped. The "$_" symbol represents each object that
     is passed to the Where-Object cmdlet.
    
    The first command uses the script block format. The second command uses the comparison statement format. The com
    mands are equivalent and can be used interchangeably.
    
    
    
    
    
    
    -------------------------- EXAMPLE 2 --------------------------
    
    PS C:\>Get-Process | Where-Object {$_.WorkingSet -gt 25000*1024}
    PS C:\>Get-Process | Where-Object WorkingSet -gt (25000*1024)
    
    
    This command lists processes that have a working set greater than 25,000 kilobytes (KB). Because the value of th
    e WorkingSet property is stored in bytes, the value of 25,000 is multiplied by 1,024.
    
    The first command uses the script block format. The second command uses the comparison statement format. The com
    mands are equivalent and can be used interchangeably.
    
    
    
    -------------------------- EXAMPLE 4 --------------------------
    
    PS C:\>Get-Process | Where-Object {$_.ProcessName -Match "^p.*"}
    PS C:\>Get-Process | Where-Object ProcessName -Match "^p.*"
    
    
    This command gets the processes that have a ProcessName property value that begins with the letter "p". The matc
    h operator lets you use regular expression matches.
    
    The first command uses the script block format. The second command uses the comparison statement format. The com
    mands are equivalent and can be used interchangeably.
    
    
    
    -------------------------- EXAMPLE 5 --------------------------
    
    PS C:\>Get-Process | Where-Object -Property Handles -ge -Value 1000
    PS C:\>Get-Process | where Handles -ge 1000
    
    
    This example shows how to use the new comparison statement  format of the Where-Object cmdlet.
    
    The first command uses the comparison statement format. In this command, no aliases are used and all parameters 
    include the parameter name.
    
    The second command is the more natural use of the comparison command format. The "where" alias is substituted fo
    r the "Where-Object" cmdlet name and all optional parameter names are omitted.
    
    
    
    -------------------------- EXAMPLE 6 --------------------------
    
    The first pair of commands gets commands that have any value for the OutputType property of the command. They om
    it commands that do not have an OutputType property and those that have an OutputType property, but no property 
    value.
    PS C:\>Get-Command | where OutputType
    PS C:\>Get-Command | where {$_.OutputType}
    
    The second pair of commands gets objects that are containers. It gets objects that have the PSIsContainer proper
    ty with a value of True ($true) and excludes all others.The "equals $True" (-eq $true) part of the command is as
    sumed by the language. You do not need to specify it explicitly.
    PS C:\>Get-ChildItem | where PSIsContainer
    PS C:\>Get-ChildItem | where {$_.PSIsContainer}
    
    The third pair of commands uses the Not operator (!) to get objects that are not containers. It gets objects tha
    t do have the PSIsContainer property and those that have a value of False ($false) for the PSIsContainer propert
    y.You cannot use the Not operator (!) in the comparison statement format of the command.
    PS C:\>Get-ChildItem | where {!$_.PSIsContainer}
    PS C:\>Get-ChildItem | where  PSIsContainer -eq $false
    
    
    This example shows how to write commands that return items that are true or false or have any value for a specif
    ied property. The example shows both the script block and comparison statement formats for the command.
    
    
    
    -------------------------- EXAMPLE 7 --------------------------
    
    PS C:\>Get-Module -ListAvailable | where {($_.Name -notlike "Microsoft*" -and $_.Name -notlike "PS*") -and $_.He
    lpInfoUri}
    
    
    This example shows how to create a Where-Object command with multiple conditions.
    
    This command gets non-core modules that support the Updatable Help feature. The command uses the ListAvailable p
    arameter of the Get-Module cmdlet to get all modules on the computer. A pipeline operator sends the modules to t
    he Where-Object cmdlet, which gets modules whose names do not begin with "Microsoft" or "PS" and have  a value f
    or the HelpInfoURI property, which tells Windows PowerShell where to find updated help files for the module. The
     comparison statements are connected by the -And logical operator.
    
    The example uses the script block command format. Logical operators, such as -And and -Or, are valid only in scr
    ipt blocks. You cannot use them in the comparison statement format of a Where-Object command.
    
    For more information about Windows PowerShell logical operators, see about_Logical_Operators (http://go.microsof
    t.com/fwlink/?LinkID=113238). For more information about the Updatable Help feature, see about_Updatable_Help (h
    ttp://go.microsoft.com/fwlink/?LinkID=235801).
    
    
    
    
関連するリンク
    Online Version: http://go.microsoft.com/fwlink/p/?linkid=289623
    Compare-Object 
    ForEach-Object 
    Group-Object 
    Measure-Object 
    New-Object 
    Select-Object 
    Sort-Object 
    Tee-Object