Where-Object cmdlet 从传递给它的对象的集合中选择具有特定属性值的对象。 例如,可以使用 Where-Object cmdlet 来选择在特定日期之后创建的文件、具有特定 ID 的事件或使用特定版本的 Windows 的计算机。 从 Windows PowerShell 3.0 开始,可通过两种不同的方法来构造 Whe
One of PowerShell’s most valuable functions is its ability to retrieve data. But unfiltered data can be overwhelming and chaotic. TheWhere-Objectcmdlet in PowerShell is designed to help users filter and manipulate data, turning excessive details into valuable information. Today, we'll delve into...
Where-Object {$_ -like 'f*'} PS> $result.GetType().FullName System.String[] PS> $result four PS> $result.Count 1 PS> $result.Length 1 PS> $result[0].Length 4 System.Tuple 对象的索引支持PowerShell 6.1 添加了对 Tuple 对象的索引访问支持,类似于数组。 例如:...
10 + @('Jack', 'Queen', 'King', 'Ace') CardDeck() { foreach($Suit in $this.Suits) { foreach($Value in $this.Values) { $this.Cards += "$Value of $Suit" } } $this.Shuffle() } [void] Shuffle() { $this.Cards = $this.Cards + $this.Dealt | Where-Object -FilterScript...
사용 Where-Object (또는 -eq)은 매번 전체 목록을 탐색하며 훨씬 느립니다. 변형: -contains 대/소문자를 구분하지 않는 일치 항목 -icontains 대/소문자를 구분하지 않는 일치 항목 -ccontai...
Object[] 0 There are a few exceptions: The containment and type operators always return a Boolean value The -replace operator returns the replacement result The -match and -notmatch operators also populate the $Matches automatic variable unless the left-hand side of the expression is a c...
$read_only= (Get-ChildItem*.txt |Where-Object{$_.IsReadOnly} ) 由于管道运算符 (|) 的优先级高于赋值运算符 (=),因此Get-ChildItemcmdlet 获取的文件将发送到Where-Objectcmdlet 进行筛选,然后再将其赋给$read_only变量。 以下示例演示了索引运算符优先于强制转换运算符。
$groupid=(Get-EC2SecurityGroup|where-object{$_.GroupName-eq"NewSG"}).GroupId $subnet1=(Get-EC2Subnet|Where-Object{$_.CidrBlock-eq"10.2.1.0/24"}).SubnetId $subnet2=(Get-EC2Subnet|Where-Object{$_.CidrBlock-eq"10.2.2.0/24"}).SubnetId ...
We’ve added a-Parallelparameter toForEach-Objectthat accepts a scriptblock to execute in parallel. There is an optional-ThrottleLimitparameter to set the maximum threads to use in parallel where it defaults to 5. Resolve AppX reparse points ...
class MyFileInfoSet : System.IEquatable[Object] { [String]$File[Int64]$Size[bool] Equals([Object]$obj) {return($this.File-eq$obj.File)-and($this.Size-eq$obj.Size) } }$a= [MyFileInfoSet]@{File ="C:\Windows\explorer.exe"; Size =4651032}$b= [MyFileInfoSet]@{File ="C:\...