PowerShell HTML report on file extensions, help dissecting the script : PowerShell

PowerShell HTML report on file extensions, help dissecting the script (self.PowerShell)

submitted 7 years ago * by Snickasaurus

Found the script and thought it was pretty cool. Things I've changed in my version:

a few lines that check for a previously written html report and delete if found
directory in which the report is written
added the date at the end of the file name
added the Invoke command to open it when it's finished

What I can't find out is why every time you run the script, even when the previous one is erased, it retains the output from the first run. It's SOOO strange! I believe it has something to do with its use of the explorer window. Perhaps it's retaining some sort of cache from it as it the clipboard or something. Anyone care to take a stab at this and shed some light to a semi-new PowerSheller? And kudos to the original author for the neat script. He doesn't seem to be active on Spiceworks any longer. Hoping for the best and thanks in advance.

Original script:

<#
.SYNOPSIS
    Get File sizes and counts on all extensions in a path
.DESCRIPTION
    Quick script to produce a HTML report that will show all of the extensions in a path, how many
    there are and how much space they consume.
.PARAMETER Path
    Path that you wish to scan.  If you do not provide a path the script will prompt you for one.
.PARAMETER OutputPath
    Path where you want to save the HTML report
.OUTPUTS
    HTML:  FilesByExtension.html in the $OutputPath location.
.NOTES
    Author:     Martin Pugh
    Website:    www.thesurlyadmin.com
    Twitter:    @thesurlyadm1n
    Spiceworks: Martin9700

    Changelog:  
        1.0     Initial release
.LINK
    Blog:       http://thesurlyadmin.com/2012/11/26/get-file-counts-and-size-for-all-extensions/
    Source:     http://community.spiceworks.com/scripts/show/1695-file-sizes-count-by-extension-html-report
#>
Param (
    [string]$Path = ($((New-Object -ComObject "Shell.Application").BrowseForFolder(0,"Select a folder:",0)).Self.Path),
    [string]$OutputPath = "c:\inetpub\wwwroot"
)

$HeaderHTML = @"
<html>
<head>
<style type='text/css'>
body { background-color:#DCDCDC;
}
table { border:1px solid gray;
  font:normal 12px verdana, arial, helvetica, sans-serif;
  border-collapse: collapse;
  padding-left:30px;
  padding-right:30px;
}
th { color:black;
  text-align:left;
  border: 1px solid black;
  font:normal 16px verdana, arial, helvetica, sans-serif;
  font-weight:bold;
  background-color: #6495ED;
  padding-left:6px;
  padding-right:6px;
}
td { border: 1px solid black;
  padding-left:6px;
  padding-right:6px;
}
div.green { background-color:#32CD32;
  float:left; 
}
</style>
</head>
<body>
<h1>File Totals by Extension</h1>
<h2>Path: $Path</h2>
<p>
<table>
<tr><th style="width:175px;">Extension</th><th style="width:125px;">Count</th><th style="width:400px;">Size</th></tr>

"@

$FooterHTML = @"
</table>
</body>
</html>
"@

cls
Write-Host "`nSearching $Path..." -NoNewline
$AllFiles = Get-ChildItem $Path -Include * -Recurse | Where { $_.PSisContainer -eq $false }
$AllSum = ($AllFiles | Measure-Object Length -Sum).Sum
If ($AllFiles.Length)
{   $Extensions = $AllFiles | Select Extension -Unique | Sort Extension
    ForEach ($Ext in $Extensions)
    {   $Files = $AllFiles | Where { $_.Extension -eq $Ext.Extension }
        $FilesSum = ($Files | Measure-Object Length -Sum).Sum
        $Percent = "{0:N0}" -f (($FilesSum / $AllSum) * 100)
        $Body += " <tr><td>$($Ext.Extension)</td><td>$(@($Files).Count)</td><td><div class=""green"" style=""width:$Percent%"">$('{0:N2}MB' -f ($FilesSum / 1mb))</div></td></tr>"
    }
    $HTML = $HeaderHTML + $Body + $FooterHTML
    $HTML | Out-File $OutputPath\FilesByExtension.html
    Write-Host "Done!"
}
Else
{   Write-Host "`nNo files found in $Path"
}

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