Navigate to the directory that contains your lab files; here is where all the action happens. If you did not specify a custom -Path when running the scripts, it should be ~/random.

1. Open the terminal and, using a code editor (vi, nano or VS Code), create a new file called Clear-LogFiles.ps1. Remember, CamelCase is just a convention.
2. Enter the following content. I suggest typing it by yourself rather than copy-pasting it.

$Today = Get-Date
$TotalFileSize = 0

$FilesToDelete = Get-ChildItem . -Recurse -File | Where-Object {[math]::Floor(($Today - $_.LastWriteTime).TotalDays) -eq 30}


Write-Host "The following files will be deleted:"
Write-Host $FilesToDelete.FullName

foreach ($File in $FilesToDelete) {
    $TotalFileSize += $File.Length
    Remove-Item -Path $File -WhatIf
}

Write-Host "Total space cleared: $([math]::Round($TotalFileSize/[math]::Pow(1024, 2))) MB"

There is no need to actually delete the files. If you would like to anyway, remove the -WhatIf switch from line 12.