通用参数: WhatIf、Confirm、Verbose、Debug、Warn、ErrorAction、ErrorVariable、OutVariable 和 OutBuffer 4.建议的参数名称:PowerShell 核心 cmdlet 使用标准名称 指示计算机的参数的建议名称是 ComputerName,而不是 Server、Host、System、Node 或其他常见的备选单词。 其他重要的建议参数名称是 Force、Exclude、Include...
$Env:<variable-name> ="<new-value>" 例如,若要创建环境变量,请执行以下操作Foo: PowerShell复制 $Env:Foo='An example' 由于环境变量始终是字符串,因此可以像使用包含字符串的任何其他变量一样使用它们。 例如: PowerShell复制 "The 'Foo' environment variable is set to:$Env:Foo"$Env:Foo+='!'$E...
Note how the code uses the$using:syntax to pass the$credvariable into theForeach-Objectscriptblock. How to create backups of a file Copy-Itemis also useful to create backups for items such as configuration files or frequently modified files in a file share. This example places each b...
/How to call a function in another PowerShell script #TYPE System.Data.DataRow Is 1st line of SSMS To CSV %username% variable in Powershell + CategoryInfo : NotSpecified: (:String) [], RemoteException <' operator is reserved for future use $_ '-msDS-cloudExtensionAttribute1' attribute not...
PowerShell在交互式Shell(interactive Shell)和脚本语言(script. Language)之间进行了平衡, 提供了执行脚本的能力. 脚本类似于函数, 存放在文件中, 调用时由PowerShell载入内存, 编译并执行. 效率上来讲, 脚本慢于函数(function), 主要原因在于函数只会在第一次调用时被编译, 而脚本每次调用都会被编译一次. 但是编...
對於效果僅限於 Windows PowerShell 執行時間內的動作,也不需要確認,例如Set-Variable。 可能或可能不會進行持續性變更的 Cmdlet 應該宣告SupportsShouldProcess,並呼叫System.Management.Automation.Cmdlet.ShouldProcess,但前提是它們即將進行持續性變更。 備註
Set-Variable [-Name] <String[]> [[-Value] <Object>] [-Include <String[]>] [-Exclude <String[]>] [-Description <String>] [-Option <ScopedItemOptions>] [-Force] [-Visibility <SessionStateEntryVisibility>] [-PassThru] [-Scope <String>] [-WhatIf] [-Confirm] [<CommonParameters>]Desc...
When you use a function in a pipeline, the objects piped to the function are assigned to the$inputautomatic variable. The function runs statements with thebeginscript block before any objects come from the pipeline. The function runs statements with theendscript block when there are no more obje...
This script, MainScript.ps1, demonstrates how to use dot sourcing in PowerShell to call a function from another script (ChildScript.ps1) and use its output for decision-making: Setting the Path to the Child Script: The variable $childScriptPath is assigned the relative path to ChildScript.ps...
InformationAction 的有效值為 SilentlyContinue、Stop、Continue、Inquire、Ignore 或 Suspend,預設值為 SilentlyContinue。 針對來自命令的 Write-Host 資料,您可使用 InformationVariable 將字串指定為要儲存的變數名稱。 InformationPreference (新的喜好設定變數) 能指定您在 Windows PowerShell 工作階段中針對資訊串流資料...