How to Change TimeStamp for multiple files/folders? (via PowerShell)

Hey,

I've found the following command:

!powershell $(Get-Item temp.m).lastwritetime=$(Get-Date \"11/24/2015 05:00 am\")

Indeed it changed the "Date Modified" of my temp.m file to be 24-Nov-2015 05:00.

Now I'd like to run it in a loop, where I can control the file name (or folder name), and also control the date?

For example -

I have 90 folders. I'd like to give to the first 5 certain date, then to the second batch of 5 folders give another date, etc...

I'm quite newbie with PowerShell syntaxing. Apprecieate the help.

THANKS !!!

[shirish pataki]

hello

default_dir = < Directory where file is present >

DestinationFileName = 'ABC.m' - You can choose it in a loop

system(['powershell $(Get-Item ' default_dir '\' DestinationFileName ').lastwritetime=$(Get-Date \"11/24/2015 05:00 am\")']);