Home/ Questions/Q 9006957
In Process

The Archive Base Latest Questions

Editorial Team
  • 0
Asked: 2026-06-16T01:33:10+00:00

I’m trying to write a one-liner in Powershell that lists all filetypes in a

  • 0

I’m trying to write a one-liner in Powershell that lists all filetypes in a folder (and its sub-folders).

I’ve got this so far:

Get-ChildItem D:\Audio -Recursive | Select-Object PSParentPath, Extension | Export-Csv D:\Test.csv

However, I’d like to do better and display, for each folder, every found extension only once.

For example, let’s say I have ten mp3 files and 1 jpg file in D:\Audio\foo and 5 flac files and 1 txt file in D:\Audio\bar. I’d like the output to be :

  • foo .mp3
  • foo .jpeg
  • bar .flac
  • bar .txt

I guess I should use Get-Unique but how do I specify it on the Extension property and NOT on the Path property?

Share

Leave an answer

You must login to add an answer.

Need An Account,

1 Answer

  1. Editorial Team

    Just add -Unique to Select-Object:

    Get-Childitem -Recurse | Select-Object PSParentPath,Extension -Unique

    (Also, DirectoryName might be better than PSParentPath here)

    • 0