问题描述
我想删除一个文件夹中除只读文件之外的所有文件和子文件夹.
I would like to delete all the files and subfolders from a folder except read-only files.
如何使用powershell?
How to do it using powershell?
推荐答案
唯一可以只读的对象是文件.当您使用 Get-ChildItem cmdlet 时，您将返回 System.IO.FileInfo 和 System.IO.DirectoryInfo 类型的对象.FileInfos 有一个名为 IsReadOnly 的属性.所以你可以做这一个班轮:
The only objects that can be read-only are files. When you use the Get-ChildItem cmdlet you are getting objects of type System.IO.FileInfo and System.IO.DirectoryInfo back. The FileInfos have a property named IsReadOnly. So you can do this one liner:
dir -recurse -path C:\Somewhere |?{-not $_.IsReadOnly -and -not $_.PsIsContainer} |Remove-Item -Force -WhatIf
PsIsContainer 属性是由 PowerShell 创建的(Ps 前缀给出了它)并告诉该项目是文件还是文件夹.我们可以使用它只将文件传递给 Remove-Item.
The PsIsContainer property is created by PowerShell (Ps prefix gives it away) and tells whether or not the item is a file or folder. We can use this to pass only files to Remove-Item.
当您准备真正删除时删除 -WhatIf.
Remove -WhatIf when you are ready to delete for real.
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