Counting Log Activity Based On Product Install

In a previous tip you learned how to use Group-Object to analyze text-based log files.

Here's a refined snippet. It will count on which days your Windows box received the most updates:

Get-Content $env:windir\windowsupdate.log | 
  Where-Object { $_ -like '*successfully installed*' } |
  Group-Object { $_.SubString(0,10) } -NoElement |
  Sort-Object Count -Descending |
  Select-Object Count, Name

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