Sometimes you need a fast way to rename a lot of file. With Powershell this is pretty easy. You list all files in the directory and you can use this object with a foreach loop.

This script basically changes the extension from .JPEG to .jpg:

$files = Get-Content
foreach ($file in $files) {
	$newFileName=$file.name.replace(".JPEG",".jpg")
	Rename-Item $file $newFileName
}

Related Posts:

• Powershell: Copy files and additional files with different name
• Windows Management Framework 3.0 Community Technology Preview
• Hyper-V: “Version 3 kills them all”
• Send E-Mail from Powershell
• Powershell: Create a tempfile with Powershell