Zip Log Files.ps1

function Compress-Subfolders
{
    param
    (
        [Parameter(Mandatory = $true)][string] $InputFolder,
        [Parameter(Mandatory = $true)][string] $OutputFolder
    )
    if (-not (test-path "$env:ProgramFiles\7-Zip\7z.exe")) {throw "$env:ProgramFiles\7-Zip\7z.exe needed"} 
    set-alias sz "$env:ProgramFiles\7-Zip\7z.exe"  
    
    $today = (get-date -Format yyyyMMdd)
    $filter = 'u_ex' + (get-date -Format yyMMdd) + '.log'
    $subfolders = Get-ChildItem $InputFolder | Where-Object { $_.PSIsContainer }
   
    ForEach ($s in $subfolders) 
    {
        $path = $s
        Set-Location $path.FullName
        $fullpath = $path.FullName
        $pathName = $path.BaseName

        #Get all items 
        $items = Get-ChildItem -exclude $filter

        $zipname = $path.name + '_' + $today + ".zip"
        $zippath = $outputfolder + $zipname
        #Compress-Archive -Path $items -DestinationPath $zippath
        Write-Host 'Writing: ' $zippath
        sz a -mx=9 -sdel $zippath $items
        #Remove-Item $items
        Write-Host 'Done writing: ' $zippath
        #Write-Host $items
    }
}

# Usage
Compress-Subfolders -InputFolder "C:\inetpub\logs\LogFiles\" -OutputFolder "C:\Archive\"

Zip Logs

function Compress-Subfolders
{
    param
    (
        [Parameter(Mandatory = $true)][string] $InputFolder,
        [Parameter(Mandatory = $true)][string] $OutputFolder
    )
    if (-not (test-path "$env:ProgramFiles\WinRAR\Rar.exe")) {throw "$env:ProgramFiles\WinRAR\Rar.exe needed"} 
    set-alias sz "$env:ProgramFiles\WinRAR\Rar.exe"  
    
    $today = (get-date -Format yyyyMMdd)
    $subfolders = Get-ChildItem $InputFolder | Where-Object { $_.PSIsContainer }

    ForEach ($path in $subfolders) { 
        $pathName = $path.BaseName
        $fullpath = $path.FullName
        $zipname = $path.name + '_' + $today + ".zip"
        $zippath = $outputfolder + $zipname
        Write-Host 'Writing: ' $zippath

        sz a $zippath $fullpath -m5 -df -ep1 -WhatIf
        
        Write-Host 'Done writing: ' $zippath
    }
}

# Usage
Compress-Subfolders -InputFolder "C:\xxx\data\working\" -OutputFolder "C:\xxx\data\"