Analyzing Result Frequencies (without Wasting Memory)

Use Group-Object to group objects based on shared property values, but don’t forget to use –NoElement parameter to discard the actual objects and return only the frequency.

Here is a simple line telling you what the file types are that you have in a given folder:

Get-ChildItem -Path c:\Windows -File | Group-Object -Property Extension -NoElement

The result may look like this:

 
Count Name                     
----- ----                     
   11 .exe                     
    1 .dat                     
    9 .log                     
    4 .xml                     
    1 .txt     
...

By specifying -NoElement, you save considerable memory because the original objects are not included in the result.

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