$_:常与Foreach-Object配套使用,代表传入当前循环的token 别名为$PSItem(token中包含当前对象) Foreach-Object也可以用%代替,例如1,2,3 | %{ write-host $_ } 系统缺省变量 $args:参数 $foreach:循环计数器,用于快速确定foreach的循环次数 $MyInvocation.MyCommand.Path:当前脚本的执行位置(包括文件名) $My...
foreach($person in $data) { $person.FirstName = 'Kevin' } 這個迴圈會遍歷 $data 陣列中的每個物件。 因為物件是參考型別,$person 變數會參考陣列中完全相同的物件。 因此,更新其屬性會更新原始物件。您仍然無法以這種方式取代整個物件。 如果您嘗試將新的物件指派給 $person 變數,您將更新變數的參考,使...
# 创建一个可以批量执行的磁盘管理脚本 # 例如,批量格式化多个分区 $drives = Get-Partition | Where-Object { $_.OperationalStatus -eq "Offline" } foreach ($drive in $drives) { Initialize-Disk -Number $drive.DiskNumber -PartitionStyle GPT New-Partition -DiskNumber $drive.DiskNumber -UseMaximumSiz...
$array = foreach ( $node in (1..5)) { "ATX-SQL-$node" } 数组类型默认情况下,PowerShell 中的数组按 [PSObject[]] 类型创建。 这使它可以包含任何类型的对象或值。 这是因为所有一切都是从 PSObject 类型继承的。强类型数组你可以使用类似的语法来创建任意类型的数组。 创建强类型数组时,它只能包含...
powershell具有在硬盘中易绕过，内存中难查杀的特点。一般在后渗透中，攻击者可以在计算机上执行代码时，...
{Write-Progress-Activity"Installing Universal Print dependencies..."-PercentComplete60Install-ModuleMicrosoft.Graph.Reports-ScopeCurrentUser-Force}Import-ModuleMicrosoft.Graph.Reports### SET DATE RANGE###if($StartDate-eq"") {$StartDate= (Get-Date-Day1).AddMonths(-1).ToString("yyyy-MM-ddT00:00:...
Any argument that is non-numeric or outside the platform-specific range is translated to the value of0. Script scope and dot sourcing Each script runs in its own scope. The functions, variables, aliases, and drives that are created in the script exist only in the script scope. You cannot...
In this example, the PipelineVariable parameter is added to a ForEach-Object command to store the results of the command in variables. A range of numbers, 1 to 5, are piped into the first ForEach-Object command, the results of which are stored in a variable named $temp. The results ...
In PowerShell, the key to metaprogramming (or writing programs that write or manipulate other programs), is something called thescriptblock. This is a block of script code that exists as an object reference but does not require a name. The Where-Object and Foreach-Object Cmdlets rely on scr...
Class SoundNames : System.Management.Automation.IValidateSetValuesGenerator { [string[]] GetValidValues() { $SoundPaths = '/System/Library/Sounds/', '/Library/Sounds','~/Library/Sounds' $SoundNames = ForEach ($SoundPath in $SoundPaths) { If (Test-Path $SoundPath) { (Get-C...