powershell - -ErrorAction Stop 在 Copy-Item 中不起作用

Question

简单的脚本:

"test" | Out-File "C:\existing_file.txt"
$ErrorActionPreference = "Continue"
Copy-Item "C:\existing_file.txt" "C:\NonExistingDir\file.txt" -ErrorAction Stop
"hello" | Out-Host

我有这个输出:

Copy-Item : Could not find a part of the path "C:\NonExistingDir\file.txt".
C:\Users\ESavin\AppData\Local\Temp\d3d410e0-79b3-4736-b7e7-5aba1ab11a12.ps1:1 знак:10
+ Copy-Item <<<<  "C:\existing_file.txt" "C:\NonExistingDir\file.txt" -ErrorAction Stop
    + CategoryInfo          : NotSpecified: (:) [Copy-Item], DirectoryNotFoundException
    + FullyQualifiedErrorId : System.IO.DirectoryNotFoundException,Microsoft.PowerShell.Commands.CopyItemCommand

hello

为什么我在输出中得到“你好”？ -ErrorAction 停止不起作用？？

更新:

这段代码:

"test" | Out-File "C:\existing_file.txt"
$ErrorActionPreference = "Stop"
Copy-Item "C:\existing_file.txt" "C:\NonExistingDir\file.txt"
"hello" | Out-Host

按预期工作。输出中没有“你好”。

Copy-Item 忽略 -ErrorAction 并仅使用 $ErrorActionPreference ??

Answer 1

正如帮助中所指出的，ErrorAction 参数对终止错误没有影响，而您的错误是。

    The ErrorAction parameter has no effect on terminating errors (such as
    missing data, parameters that are not valid, or insufficient 
    permissions) that prevent a command from completing successfully.

来源: Get-Help about_commonparameters和 http://technet.microsoft.com/en-us/library/dd315352.aspx