searches directories and outputs file ages by various time

File-Aging.ps1

# FileAging.ps1
# This script developed and tested with PowerShell RTM

Param($dir)
if ($dir -isnot [string]) {
Write-Host “ERROR: You must specify a directory path!” `
-foregroundcolor “RED” -backgroundcolor “Black”;`
return
}

#verify $Dir exists as a path
if (Test-Path $Dir) {

    $now=Get-Date
    #only get file objects, not folder objects
    $files=Get-ChildItem -path $dir -recurse | `
    where {($_.GetType()).name -eq “FileInfo”}
    #clear-host
   
    #initialize
    $Total2yr=0
    $Total90=0
    $Total1yr=0
    $Total30=0
    $Total7=0
    $TotalCurrent=0
    $2yrs=0
    $1yr=0
    $3mo=0
    $1mo=0
    $1wk=0
    $current=0
    $count=0
   
    #enumerate files and get information
    foreach ($file in $files) {
        $age=($now.subtract(($file.LastWriteTime))).days
        $count=$count+1
        Write-Progress -Activity “File Aging Report” `
        -status $file.DirectoryName -currentoperation $file.name
        switch ($age) {
         {$age -ge 730} {$2yrs=$2yrs+1;$Total2yr=$Total2Yr+$file.length;`
         break}
         {$age -ge 365} {$1yr=$1yr+1;$Total1yr=$Total1Yr+$file.length;`
         break}
         {$age -ge 90} {$3Mo=$3Mo+1;$Total90=$Total90+$file.length;`
         break}
         {$age -ge 30} {$1Mo=$1Mo+1;$Total30=$Total30+$file.length;`
         break}
         {$age -ge 7} {$1wk=$1wk+1;$Total7=$Total7+$file.length;break}
         {$age -lt 7}  {$current=$current+1;$TotalCurrent=`
         $TotalCurrent+$file.Length;break}
         }
         $server = hostname
         $file | select Name,FullName,CreationTime,LastWriteTime,LastAccessTime,@{n='Length (KB)';e={($_.length)/1024}} | export-csv C:\temp\filereport_$server.csv -NoTypeInformation -Append
    }

    $GrandTotal=$Total2yr+$Total1yr+$Total90+$Total30+$Total7+$TotalCurrent
   
    #format file size totals to MB
    $GrandTotal=”{0:N2}” -f ($GrandTotal/1048576)
    $Total2yr=”{0:N2}” -f ($Total2yr/1048576)
    $Total90=”{0:N2}” -f ($Total90/1048576)
    $Total1yr=”{0:N2}” -f ($Total1yr/1048576)
    $Total30=”{0:N2}” -f ($Total30/1048576)
    $Total7=”{0:N2}” -f ($Total7/1048576)
    $TotalCurrent=”{0:N2}” -f ($TotalCurrent/1048576)
   
    #clear-host
    Write-Host “File Aging for” $dir.ToUpper()
    Write-Host “2 years:” $2yrs “files” $Total2yr “MB” -foregroundcolor “Red”
    Write-Host “1 year:” $1yr “files” $Total1yr “MB” -foregroundcolor “Magenta”
    Write-Host “3 months:” $3mo “files” $Total90 “MB” -foregroundcolor “Yellow”
    Write-Host “1 month:” $1mo “files” $Total30 “MB” -foregroundcolor “Cyan”
    Write-Host “1 week:” $1wk “files” $Total7 “MB” -foregroundcolor “Green”
    Write-Host “Current:” $current “files” $TotalCurrent “MB”
    Write-Host `n
    Write-Host “Totals:” $count “files” $GrandTotal “MB”
    Write-Host `n
    $props = [ordered]@{
        FilePath = $dir
        TwoYearFileCount = $2yrs
        'TwoYearFileSize (MB)' = $Total2yr
        OneYearFileCount = $1yr
        'OneYearFileSize (MB)' = $Total1yr
        ThreeMonthFileCount = $3mo
        'ThreeMonthFileSize (MB)' = $Total90
        OneMonthFileCount = $1mo
        'OneMonthFileSize (MB)' = $Total30
        OneWeekFileCount = $1wk
        'OneWeekFileSize (MB)' = $Total7
        NewFileCount = $current
        'NewFileSize (MB)' = $TotalCurrent
        TotalCount = $count
        'TotalSize (MB)' = $GrandTotal
    }
    $obj = new-Object -TypeName PSOBject -Property $props
    $Obj | export-csv C:\temp\filesummary_$server.csv -NoTypeInformation -Append
  }
  else {
  Write-Host “Failed to find” $Dir.ToUpper() -foregroundcolor “Red” `
  -backgroundcolor “Black”
  }

  #usage PS C:\scripts> Dir F: | foreach {.\File-Aging.ps1 $_.FullName}

I can't remember where I got this from, but I updated it to be pure host-output to be an object for exporting