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I have a folder with a bunch of textures and things that I need to rename to lower case, is there any way to rename all the files and folders of files in this folder to have lower case names at once? edit: this is different from the similar post because the command from that answer will only do it for one folder at a time, not all the folders in the top folder

Bluesandbox
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    Does this answer your question? [Is there a way to batch rename files to lowercase?](https://superuser.com/questions/65302/is-there-a-way-to-batch-rename-files-to-lowercase) – harrymc Jul 29 '20 at 15:43
  • No, sorry. I already looked at that but that command can only rename the files in a single folder at a time and I have a lot of folders sadly – Bluesandbox Jul 29 '20 at 16:02
  • Only a simple adaptation is needed. See below. – harrymc Jul 29 '20 at 16:11
  • I tried all of the commands below but they all return errors and all the files are still in caps – Bluesandbox Jul 29 '20 at 16:39
  • If you look closely, I think you'll see file names have changed, it's folder names that generate the `Source/Destination` error. – Keith Miller Jul 29 '20 at 18:22

4 Answers4

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I found this in a comment on the simalar post that at first i thought only renamed things in the foler its executed in. It seems to work

 Get-ChildItem "C:\path\to\folder" -recurse | 
  Where {-Not $_.PSIsContainer} | 
  Rename-Item -NewName {$_.FullName.ToLower()}
Bluesandbox
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Try this powershell code:

Get-childItem "Filepath" -Recurse | Rename-Item -NewName {$_.Basename.tostring().tolower() + $_.extension}

This will recursively rename all files and folders in "Filepath" to lower case.

Wasif
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    I tried that in the powershell command line but it just kept saying "Rename-Item : Source and destination path must be different." – Bluesandbox Jul 29 '20 at 16:23
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Based on Is there a way to batch rename files to lowercase, here is a formulation that does files and folders recursively:

for /f "Tokens=*" %f in ('dir /l/b/s') do (rename "%f" "%f")
harrymc
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PowerShell: Verbose, Files

$Source = 'c:\TopFolder'
( Get-ChildItem $Source -File -Recurse ) | Rename-Item -NewName { $_.Name.ToLower() }

Key-Banger, Files:

(gci 'c:\TopFolder' -af -r) | ren -new { $_.Name.ToLower() }

For folders, to avoid Source/Destination errors, you have to rename to a temp value as an intermediate step. Here's one way:

gci -ad -Recurse | %{
$Lower = $_.Name.ToLower()
$_ | ren -new {(Get-Date).Ticks } -passthru | ren -new {$Lower}
}
Keith Miller
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