Copy files in powershell according to the date modified

Question

I'm trying to copy files in a folder to another folder according to the date modified but the code keeps copying all files in the source folder to the destination folder.

New-Item -Path $psScriptRoot\ArchiveTest -ItemType Directory 

compress-Archive -Path $PSScriptRoot\*.txt -DestinationPath $PSScriptRoot\ArchiveTest  | Where-Object LastWriteTime -Like "*2010*" 

I've tried changing the Syntax of the where-Object cmdlet. When I use the Get-Item cmdlet with the exact same Where-Object i get the correct output.

The end goal is to archive the files in a folder according to year, so for instance:

Items in folder:

Mode LastWriteTime Length Name

---

-a---- 2010/02/15 15:23 39590 Test5.txt -a---- 2010/02/24 17:43 690581 Test5.txt -a---- 2012/04/12 11:46 105086 Test5.txt -a---- 2015/05/10 15:46 15952531 Test5.txt -a---- 2015/05/12 09:27 453365 Test5.txt

What I want to end with in the folder:

Mode LastWriteTime Length Name

---

d----- 2023/01/10 11:35 2010 -----
d----- 2023/01/10 11:35 2012 ------- (Zip Folders) d----- 2023/01/10 11:35 2015 -----/

Answer 1

Here is how to do it:

Get-ChildItem -Path $PSScriptRoot -Filter "*.txt" | Where-Object { $_.LastWriteTime.Year -eq "2022" } | Compress-Archive -DestinationPath "$PSScriptRoot\archive_2022.zip"

Here is how to do it in a loop for several years:

$startYear = 2001;
$endYear = 2020;

for ($year = $startYear; $year -le $endYear; $year++) {
    Get-ChildItem -Path $PSScriptRoot -Filter "*.txt" | Where-Object { $_.LastWriteTime.Year -eq $year } | Compress-Archive -DestinationPath "$PSScriptRoot\archive_$year.zip"
}