Important Note: The File renaming in bulk can result in dangerous results in not handled correctly. This post is ONLY to share my learning’s to serve you as a guidance to build your own scripts for similar requirements.
Requirement:
I had a folder which contained sub-folders and then files. The naming convention of file names is “<string> – <string> – <string>.mp4”. Out of which the first String is too lengthy and common for all files which I wanted to get rid of it.
Script:
function Rename-Files ($folder) {
$files = dir $folder | where {! $_.PsIsContainer}
# $files = dir $folder | where {! $_.PsIsContainer} | Select-Object -First 1
foreach ($file in $files) {
$SplitName = $file.Name -Split ” – “
if ($SplitName.Length -eq 1) { Continue }
$NewFileName = “”
for($counter = 0; $counter -le ($SplitName.Length – 1); $counter++) {
if ($counter -eq “0” ) {
Continue
}
if ($counter -eq “1” ) {
$NewFileName += $SplitName[$counter]
} else {
$NewFileName = $NewFileName + ” – “ + $SplitName[$counter]
}
}
if ($NewFileName -eq “”) {
Write-Host “The value of NewFileName is empty [$NewFileName]”
Continue
}
if (Test-Path -path “$folder\$NewFileName“) {
Write-Host “The destination path [$folder\$NewFileName] already exists!, skipping renaming!!”
Continue
}
Rename-Item -Path “$folder\$file“ -NewName $NewFileName
Write-Host “INFO: Successfully renamed file [$folder\$file] to [$NewFileName]”
}
}
$ParentFolder = “G:\1”
$subfolders = dir $ParentFolder -Recurse | where {$_.PsIsContainer}
foreach ($subfolder in $subfolders) {
$FolderPath = $subfolder.FullName
Write-Host “Processing Folder [$FolderPath]”
Rename-Files $FolderPath
}
