powershell - How to rename some files according to their timestamp

suppose I have 10 files generated by the system every day under D:\Temp. The names are RANDOMLY when generated.

Assume I need to rename the oldest one to be 'aaa', the second oldest one to be 'bbb'..then 'ccc'...'ddd'.

can someone help to write batch script? Powershell cmdlt will be good as well.

Thanks!

Answer

Here is a solution using a list of names:

$names = @('one.txt', 'two.txt', 'three.txt', 'four.txt', 'five.txt', 'six.txt', 'seven.txt', 'eight.txt', 'nine.txt', 'ten.txt')
$count = 0
foreach($file in (Get-ChildItem i:\temp | Sort-Object LastWriteTime | Select-Object -First 10)){
    Rename-Item $file.FullName (Join-Path $file.DirectoryName $names[$count])
    $count++
}