选项 -recurse 有时不适用于 PowerShell cmdlet get-childitem [英] Option -recurse sometimes does not work for PowerShell cmdlet get-childitem

问题描述

假设我有这个文件:

C:\[foo]\bar

然后我运行这些 PowerShell 命令:

I then run these PowerShell commands:

$path = 'C:\[foo]'
get-childitem -literalpath $path

一切正常，get-childitem 显示文件 bar，然后立即返回.

Everything works fine, get-childitem shows me the file bar, then returns immediately.

现在我添加 -recurse 选项:

$path = 'C:\[foo]'
get-childitem -literalpath $path -recurse

get-childitem 不再显示文件 bar.此外，该 cmdlet 运行时间很长，并且会为 C:\Windows 下的文件夹显示各种权限被拒绝"错误消息，这显然是因为它扫描了整个 C: 驱动器.

get-childitem no longer displays the file bar. In addition, the cmdlet runs a long time and displays various "permission denied" error messages for folders underneath C:\Windows, apparently because it scans the entire C: drive.

问题与文件夹 [bar] 的名称中有括号有关.如果我将文件夹重命名为 bar，即没有括号，递归的结果会按预期工作.

The problem is tied to the fact that the folder [bar] has brackets in the name. If I rename the folder to bar, i.e. without brackets, the result with recursion works as expected.

我的主要问题:如何说服 get-childitem 递归扫描名称中包含括号(或其他特殊字符)的文件夹?

My main question: How can I convince get-childitem to recursively scan folders that have brackets (or other special characters) in the name?

第二个问题:这是一个已知的错误吗?

A secondary question: Is this a known bug?

环境:Windows 8.1、PowerShell 4.0.

Environment: Windows 8.1, PowerShell 4.0.

我验证了在 PowerShell 2.0(在 Windows 7 机器上)get-childitem 返回相同的结果，无论是否使用 -recurse.该行为似乎在 3.0 或 4.0 版中发生了变化.

I verified that in PowerShell 2.0 (on a Windows 7 machine) get-childitem returns the same result with or without -recurse. It appears that the behaviour has changed either in version 3.0 or 4.0.

推荐答案

我在使用 PowerShell 4.0 的 Windows 7 x64 位上也得到与您相同的结果.从它的外观来看，递归功能忽略了 -LiteralPath.

I also get the same results as you on Windows 7 x64 bit with PowerShell 4.0. From the looks of it the recursive functionality is ignoring the -LiteralPath.

这是一种解决方法，我发现了一个 TechNet 帖子 讨论了同样的问题.那篇文章中的 OP 最终使用 -Path 并双重转义括号.

This is a workaround put I found a TechNet post discussing the same issue. The OP in that post ended up using -Path and double escaping the brackets.

$path = "C:\[foo]"
$escapedPath = $path.Replace("[","``[").Replace("]","``]")
Get-ChildItem -Path $escapedPath -Recurse

注意:如果删除 -Recurse

Get-ChildItem : Cannot find path 'C:\`[foo`]' because it does not exist.

这篇关于选项 -recurse 有时不适用于 PowerShell cmdlet get-childitem的文章就介绍到这了，希望我们推荐的答案对大家有所帮助，也希望大家多多支持IT屋！