Don't modify the global $ErrorActionPreference variable unless absolutely necessary. If you change it in a local scope, it reverts to the previous value when you exit that scope. If you're using something like .
Windows PowerShell reserves a few parameter names, referred to as Common parameters, which you can't use: WhatIf, Confirm, Verbose, Debug, ErrorAction, ErrorVariable, OutVariable, and OutBuffer. In addition, the following aliases for these parameter names are reserved: vb, db, ea, ev, ov...
The other cool thing is that it will only write stuff to the console if you tell it to. By default, Write-Debug does not print out anything to the console. The input variable to the Set-StopWatch function is $action. The Switch statement looks at the value of the $action variable to...
在事件動作中,$args變數包含對象,這些物件代表正在處理之事件的事件自變數。 此變數只會在事件註冊命令的Action區塊內填入。 The value of this variable can also be found in theSourceArgsproperty of thePSEventArgsobject thatGet-Eventreturns. $ConsoleFileName ...
PRINT打印一个文本文件。 PROMPT改变Windows命令提示。 PUSHD保存当前目录,然后对其进行更改。 RD删除目录。 RECOVER从损坏的磁盘中恢复可读取的信息。 REM记录批处理文件或CONFIG.SYS中的注释。 REN重新命名文件。 RENAME重新命名文件。 REPLACE替换文件。 RMDIR删除目录。 ROBOCOPY复制文件和目录树的高级实用程序 SET显示...
As you can see, all we’re doing here is assigning a value to a variable named $yes. Note that you can name this variable anything you want; it doesnothave to have the same name as the option. Even though we’re setting up a Yes option we could have named the variable $watermelon...
Since Visual Studio 2015, the Developer Command Prompt sets the VSCMD_VER environment variable which contains the version information for Visual Studio (ex: 17.9.0). If you need to detect whether the Developer Command Prompt has already been run in your console, it is recommended to check ...
Write-Host "Changing the value of debug preference variable" -ForegroundColor Green Write-Host "Current value is" -ForegroundColor Green $DebugPreference Write-Debug "wont print this on console" $DebugPreference = "Continue" Write-Debug "now this will be displayed" ...
Using -ErrorVariableWhen you run a PowerShell cmdlet and an error occurs, the error record will be appended to the automatic variable named $error. When you use the -ErrorVariable parameter in a call to a command, the error is assigned to the variable name that you specify. Even when ...
You can also provide a secure string as a converted clear-text variable, although this is highly discouraged. For example: PowerShell Copy Uninstall-ADDSDomainController -LocalAdministratorPassword (ConvertTo-SecureString "Password1" -AsPlainText -Force) Warning Providing or storing a clear text ...