samples/Get-ZeroSize.ps1
|
#requires -module CIMCmdlets Function Get-ZeroLengthFiles { [CmdletBinding()] [alias('gzf', 'zombie')] Param( [Parameter(Position = 0, HelpMessage = 'Specify a path to search.')] [ValidateScript( { Test-Path -Path $_ })] [String]$Path = '.', [Switch]$Recurse ) Begin { Write-Verbose "[$((Get-Date).TimeOfDay) BEGIN ] Starting $($MyInvocation.MyCommand)" #select a subset of properties which speeds things up $get = 'Name', 'CreationDate', 'LastModified', 'FileSize' $cimParams = @{ Classname = 'CIM_DATAFILE' Property = $get ErrorAction = 'Stop' Filter = '' } } #begin Process { Write-Verbose "[$((Get-Date).TimeOfDay) PROCESS] Using specified path $Path" #test if folder is using a link or reparse point if ( (Get-Item -Path $Path).Target) { $target = (Get-Item -Path $Path).Target Write-Verbose "[$((Get-Date).TimeOfDay) PROCESS] A reparse point was detected pointing towards $target" #re-define $path to use the target $Path = $Target } #convert the path to a file system path Write-Verbose "[$((Get-Date).TimeOfDay) PROCESS] Converting $Path" $cPath = Convert-Path $Path Write-Verbose "[$((Get-Date).TimeOfDay) PROCESS] Converted to $cPath" #trim off any trailing \ if cPath is other than a drive root like C:\ if ($cPath.Length -gt 3 -AND $cPath -match '\\$') { $cPath = $cPath -replace '\\$', '' } #parse out the drive $drive = $cPath.Substring(0, 2) Write-Verbose "[$((Get-Date).TimeOfDay) PROCESS] Using Drive $drive" #get the folder path from the first \ $folder = $cPath.Substring($cPath.IndexOf('\')).replace('\', '\\') Write-Verbose "[$((Get-Date).TimeOfDay) PROCESS] Using folder $folder (escaped)" if ($folder -match '\w+' -AND $PSBoundParameters.ContainsKey('Recurse')) { #create the filter to use the wildcard for recursing $filter = "Drive='$drive' AND Path LIKE '$folder\\%' AND FileSize=0" } elseif ($folder -match '\w+') { #create an exact path pattern $filter = "Drive='$drive' AND Path='$folder\\' AND FileSize=0" } else { #create a root drive filter for a path like C:\ $filter = "Drive='$drive' AND Path LIKE '\\%' AND FileSize=0" } #add the filter to the parameter hashtable $cimParams.filter = $filter Write-Verbose "[$((Get-Date).TimeOfDay) PROCESS] Looking for zero length files with filter $filter" #initialize a counter to keep track of the number of files found $i = 0 Try { Write-Host "Searching for zero length files in $cPath. This might take a few minutes..." -ForegroundColor magenta #find files matching the query and create a custom object for each Get-CimInstance @cimParams | ForEach-Object { #increment the counter $i++ #create a custom object [PSCustomObject]@{ PSTypeName = 'cimZeroLengthFile' Path = $_.Name Size = $_.FileSize Created = $_.CreationDate LastModified = $_.LastModified } } } Catch { Write-Warning "Failed to run query. $($_.exception.message)" } if ($i -eq 0) { #display a message if no files were found Write-Host "No zero length files were found in $cPath." -ForegroundColor yellow } else { Write-Verbose "[$((Get-Date).TimeOfDay) PROCESS] Found $i matching files" } } #process End { Write-Verbose "[$((Get-Date).TimeOfDay) END ] Ending $($MyInvocation.MyCommand)" } #end } |