A script block returns the output of all the commands in the script block, either as a single object or as an array.You can also specify a return value using the return keyword. The return keyword doesn't affect or suppress other output returned from your script block. However, the ...
Exits the current scope, which can be a function, script, or script block. Long description Thereturnkeyword exits a function, script, or script block. It can be used to exit a scope at a specific point, to return a value, or to indicate that the end of the scope has been reached....
键Invoke-Command:ScriptBlock设置为系统事件日志的默认值,因为脚本块包含在第二组大括号中。 脚本块的结果将Invoke-Command传递给 cmdlet。 PowerShell $PSDefaultParameterValues=@{"Invoke-Command:ScriptBlock"={{Get-EventLog-LogSystem}} } 如何获取$PSDefaultParameterValues ...
First, I'm opening the files in create mode, which is a system change, so I should wrap that code in a ShouldProcess block. That means I will have an opportunity to tell the user what I'm going to do before I actually do it. (This is done when the user uses either Confirm or ...
Return correct FileName property for Get-Item when listing alternate data streams (#18019) (Thanks @kilasuit!) Add -ExcludeModule parameter to Get-Command (#18955) (Thanks @MartinGC94!) Update Named and Statement block type inference to not consider AssignmentStatements and Increment/decrement ope...
ScriptBlock属性可以在不查看文档的情况下显示在当前函数中包含的功能。下例获取当前函数的信息:展开表 PS C:\> $helloFunction.ScriptBlock Write-Host " Hello World from a function in PowerShell." PS C:\> &$helloFunction.ScriptBlock Hello World from a function in PowerShell.上例中使用了调用操作...
Update-TypeData命令使用 TypeName 参数指定 System.DateTime 类型,使用 MemberName 参数指定新属性的名称,使用 MemberType 属性指定 ScriptProperty 类型,使用 Value 参数指定用于确定季度的脚本。 Value属性的值是一个用于计算当前年度季度的脚本。 该脚本块使用$this自动变量表示该对象的当前实例,并使用 In 运算符确定...
ScriptBlock Cannot use Set-Acl properly despite being file owner and being a member of Administrators Group. Cannot validate argument on parameter 'Name'. The argument is null or empty. Provide an argument that is not null or empty, and then try the command again. CannotConnect,PSSessionState...
The script sets an initial timeout value of 5 seconds. This timeout will be increased in case of a timeout error during the execution of the SQL command. FunctionGiveMeConnectionSource($connectionString){$NumberAttempts= 5for($i=1;$i-le[int]$NumberAttempts;$i+...
Even when events are handled on the right thread, PowerShell’s scoping concepts mean that the event handler scriptblock must be written carefully to not depend on variables defined outside it. There are situations where redirecting to a common version will not work: ...