file rename in bulk in powershell using foreach loop

Question

$folderpath = 'E:\BOOKS\Python\python\python'
$items = Get-ChildItem -Recurse $folderpathc *_pdf
foreach( $i in $items) { Rename-Item E:\BOOKS\Python\python\python\$i E:\BOOKS\Python\python\python\$i.pdf }

Hi, I tried to rename the file under a folder using above command but not able to do and got below error.

Rename-Item : Cannot rename because item at 'E:\BOOKS\Python\python\python\book_pdf' does not exist.
At line:1 char:37
+ foreach( $i in $items) { Rename-Item <<<<  E:\BOOKS\Python\python\python\$i E:\BOOKS\Python\python\python\$i.pdf }
    + CategoryInfo          : InvalidOperation: (:) [Rename-Item], PSInvalidOperationException
    + FullyQualifiedErrorId : InvalidOperation,Microsoft.PowerShell.Commands.RenameItemCommand

possible duplicate of [Rename files to lowercase in Powershell](http://stackoverflow.com/questions/3822745/rename-files-to-lowercase-in-powershell) — Cole9350, Aug 12 '14 at 15:53

score 9 · Accepted Answer · answered Aug 12 '14 at 18:02

9

Looks like you want to change all '_pdf' to '.pdf', if so this is a pretty easy way to do it.

ls -Path 'E:\BOOKS\Python\python\python' -Filter *_pdf | 
  ForEach-Object {$_ | Rename-Item -NewName $_.Name.Replace('_pdf', '.pdf')}

answered Aug 12 '14 at 18:02

Andy Arismendi

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score 0 · Answer 2 · answered Aug 12 '14 at 17:53

You're over complicating things. Don't re-type out the path name to the file, use the FullName property already provided by the Get-ChildItem cmdlet. Then just use a substring of the BaseName property to remove the last 4 characters, and add ".pdf" to the end.

$folderpath = 'E:\BOOKS\Python\python\python'
$items = Get-ChildItem -Recurse $folderpathc *_pdf
foreach( $i in $items) { 
    Rename-Item $i.FullName ($i.basename.substring(0,$i.BaseName.length-4)+".pdf")
}

file rename in bulk in powershell using foreach loop

2 Answers2

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