You may also need a little bit more work to do, because if the key exists, then you just create the new property, but what if the key and property already exist? I also noticed the the path being used in the New
Q:I am having a problem trying to update the registry. I am using the New-ItemProperty cmdlet, but it fails if the registry key does not exist. I added the –Force parameter, but it still does not create the registry key. The error message says that it cannot find the path bec...
When the server is running under an account that does not have write permissions to the registry location where these settings are stored the user will be prompted to change the permissions. If this value is set to 0 the user will not be prompted again. Possible values are: 0 - Off: ...
Accordingly, before you edit the registry with PowerShell or any other tool, create a backup or a system restore point. This safety net enables you to restore the system to a previous state if something goes wrong. Steps for backing up and restoring the registry are provided later in this ...
If the registry key does not exist, we write a couple of debug statements, create the $swv variable and set it to null, and then call the New-StopWatchKey function, which creates the registry key: Copy Else { Write-Debug "$path was not found" $swv = $null Write-Debug "$swv is...
ステートメントの一覧で、ステートメントを if 使用して、関数でパラメーターを使用できる条件を指定します。次の例は、Name とPath という名前の標準パラメーターと、KeyCount という名前のオプションの動的パラメーターを持つ関数を示しています。 KeyCount パ...
When importing a module into a session, PowerShell automatically imports the help topics for that module. If there are no help topics for a module, theGet-Helpcommand displays autogenerated help. Three types of help content exist in PowerShell: comment-based help, external help and updatable ...
Get-ChildItem-Path./file.txtif(-not$?) {Write-Error"file.txt does not exist"}if($?) {Get-Content-Raw./file.txt } 错误交互 管道链运算符不会吸收错误。 当管道链中的语句引发脚本终止错误时,管道链将终止。 例如: PowerShell $(throw'Bad') ||Write-Output'2' ...
If it is False, the January 2018 update is not installed, and kernel VA shadow support does not exist. Windows OS support for kernel VA shadow is enabled Maps to KVAShadowWindowsSupportEnabled. This line tells you whether the kernel VA shadow feature is enabl...
使用 WhatIf 参数的 $false 值。 使用 Get-ChildItem 确认文件已删除。 PowerShell 复制 Remove-Item -Path .\test2.txt -WhatIf:$false Get-ChildItem -Path .\test2.txt Output 复制 Get-ChildItem : Cannot find path 'C:\Test\test2.txt' because it does not exist. At line:...