Automated Disk Usage Reports With Powershell

Just a quick one today, a simple script to produce a nicely formatted email showing disk space usage.

When I set out to do this, I assumed it would be easy and expected to find hundreds of examples, but couldn't find any that did what I wanted.

This script uses Powershell and du.exe from Sysinternals (now part of Microsoft).


# uses du.exe from sysinternals
# http://technet.microsoft.com/en-us/sysinternals/bb896651.aspx

$dir="C:\users"
$smtpserver = "mail.example.local"
$sender = "sender@example.local"
$server = "file.example.local"
$recipient = "recipient@example.local"

$du=C:\utilities\du.exe -accepteula -l 1 $dir | sort -desc

$smtp = new-object Net.Mail.SmtpClient($smtpserver)
$msg = new-object Net.Mail.MailMessage

$msg.From = $sender
$msg.To.Add($recipient)
$msg.Subject = "$server Disk Usage Report"
$msg.Body = "<p>$server Disk Usage Report in KB</p>"

$msg.Body += "<table>"
$du[4 .. $du.length] | forEach-Object {
$fields = $_.split(" ",[StringSplitOptions]::RemoveEmptyEntries)
$msg.Body += "<tr><td>$($fields[0]) </td><td>$($fields[1 .. $fields.length]) <td></tr>"
}
$msg.Body += "</table>"

$msg.IsBodyHTML = $true
$smtp.Send($msg)