How do I rename numbered files using powershell?

Question

Hello,

I'd like to rename a batch of files with dates, written as follows:

text 2020-12
text 2020-11
text 2020-10
continuing to
text 2016-10

to

2020-12 - text
2020-11 - text

Thanks

Answer 1

Hi @Nativus N00b ,

maybe this is helpful to get started (** Use on your own risk!**):

## Remove the -Whatif to execute the renaming ##  
  
# Rename one file - for instance for testing  
$file = "Junk/text 2020-12"  
$fileObj = Get-Item -Path $file  
$splitName = $fileObj.BaseName.Split(" ")  
$newName = $splitName[1] + " - " + $splitName[0] + ($fileObj.Extension)  
$fileObj | Rename-Item -NewName $newName -WhatIf  
  
# Rename files in folder  
$folder = "Junk/*"  
$files = Get-ChildItem -Path $folder -File -Include text*  
foreach ($obj in $files) {  
    $fileObj = Get-Item -Path $obj  
    $splitName = $fileObj.BaseName.Split(" ")  
    $newName = $splitName[1] + " - " + $splitName[0] + ($fileobj.Extension)  
    $fileObj | Rename-Item -NewName $newName -WhatIf  
    }  

----------

(If the reply was helpful please don't forget to upvote and/or accept as answer, thank you)

Regards
Andreas Baumgarten

Answer 2

Hi,

Please check to see if this works.

$folder = 'C:\temp\'  
Get-ChildItem -Path $folder|ForEach-Object{  
    $array = $_.BaseName -split ' '  
    $newname = $array[-1] + ' - '+ ($array[0..($array.count-2)] -join ' ') + $_.Extension  
    Rename-Item -Path $_.FullName -NewName $newname  
}  

Best Regards,
Ian Xue

============================================

If the Answer is helpful, please click "Accept Answer" and upvote it.
Note: Please follow the steps in our documentation to enable e-mail notifications if you want to receive the related email notification for this thread.