When you pass a variable by reference, you are passing a reference to the original value. This allows the function to change the value of the variable that's passed to it. Reference types are created using [ref], which is the type accelerator for the [System.Management.Automation.PS...
After we return from the New-StopWatchKey function, we print another debug statement and call the Get-StopWatchvalue function. We also pass the $swv variable by reference ($swv will be used later to display the data that was retrieved from the registry): Copy Write-Debug "Obtaining defaul...
Example 4: Use Select-String in a functionThis example creates a function to search for a pattern in the PowerShell help files. For this example, the function only exists in the PowerShell session. When the PowerShell session is closed, the function is deleted. For more information...
When running in parallel, objects decorated withScriptPropertiesorScriptMethodscan't be guaranteed to function correctly if they're run in a different runspace than the scripts were originally attached to them. Scriptblock invocation always attempts to run in itshomerunspace, regardless of where it'...
I have to hook up the click event to some PowerShell code, read the values in the text boxes, pass them as parameters to the Get-PresentValue and bind it to the ListView. Do-Calculation Function I’m going to add a Do-Calculation function...
Redirecting the output of a PowerShell command (cmdlet, function, script) using the redirection operator (>) is functionally equivalent to piping toOut-Filewith no extra parameters. PowerShell 7.4 changed the behavior of the redirection operator when used to redirect thestdoutstream of a native co...
If you make a function into an advanced function by using either theCmdletBindingorParameterattributes, the$argsautomatic variable is no longer available in the function. Advanced functions require explicit parameter definition. PowerShell Desired State Configuration (DSC) was not designed to use splatti...
function GetArgumentsFunction { ## We could use a param statement here, as well ## param($firstNamedArgument, [int] $secondNamedArgument = 0) ## Display the arguments by position "First positional function argument is: " + $args[0] ...
Compress-Archive-LiteralPath<String[]> [-DestinationPath] <String> [-CompressionLevel <String>] [-PassThru] [-WhatIf] [-Confirm] [<CommonParameters>] 说明 Compress-Archivecmdlet 从一个或多个指定的文件或目录创建压缩的存档文件。 存档可将多个文件打包,还可以将其压缩为单个压缩文件以便分发和存储。
A PowerShell function uses two kinds of pipeline input:ByValue(entire object) andByPropertyName(a single object property). Here, because the$computersarray contains only strings, you’ll pass those strings viaByValue. To add pipeline support, add a parameter attribute to the parameter you want...