Powershell - How to replace dots on files exept the extension

user_16791168 0
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I have a question about the replacement of dots on multiple files, i have the next code:

Dir | Rename-item -NewName{ $_.basename.replace(".","-") + $_.extension }

This code works, but i have folders with dots and the problem is when i run the code, the folders repeat the words after the point like a "file extension":

i have a folder with dots, "carpeta.uno"

like this:

then i have a folder with "file extension (.uno)"

How can i resolve this problem, i need just replace the dot on folder name with another word or space or everything i like and the files on the folder just replace before the extension.

thanks!

powershell
1 Answers

Unfortunately, the .BaseName ETS (Extended Type System) property that PowerShell adds to System.IO.DirectoryInfo instances, i.e. directories, by - unfortunate - design, unconditionally reports the directory name as-is.

It is only for System.IO.FileInfo instances, i.e. files, that .BaseName strips the extension, i.e., the last .-separated component.[1]

You can work around the problem by calling the System.IO.Path.GetFileNameWithoutExtension .NET method, which does not make this distinction (similarly, the type-native .Extension property doesn't make this distinction either, so it can be used as-is).

Get-ChildItem | Rename-Item -NewName { 
  [IO.Path]::GetFileNameWithoutExtension($_.Name).Replace('.', '-') + $_.Extension
}

[1] You can verify this as follows:
(Get-TypeData System.IO.DirectoryInfo).Members.BaseName vs.
(Get-TypeData System.IO.FileInfo).Members.BaseName

user_453750
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