Locate duplicate files

Question

Within windows explorer. Happy to use cmd prompt/powershell if need be.

I have folder A, signified with A:1,2,3 (1,2,3 being different file names within folder A)

Folder B B:1,2,3,4,5,6

So files 1,2,3 are located in both folders.

Am I able to "Subtract Folder A from B" hence B:4,5,6 and no longer containing 1,2,3 (duplicate files)

Sorry if not explained well

I am comparing individual files, not a list of files in 1 text file (for duplicate question)

score 1 · Answer 1 · answered Sep 24 '19 at 07:02

Within windows explorer. Happy to use cmd prompt/powershell if need be.

Are you open to applications? If so, I can recommend, from experience, Free Duplicate File Finder.

KEY FEATURES

Powerful search engines (byte by byte and SHA-1)
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Search local PC and over network.

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If you don't like that (although I can't imagine why not), ask us for another solution on software recommendations

score 0 · Answer 2 · answered Sep 24 '19 at 18:55

PowerShell Option:

-whatif included --- remove to execute

$FolderA = 'c:\Folder\A'
$FolderB = 'c:\Folder\B'

(Get-ChildItem -Path $FolderA -file).Name |
      Remove-Item "$FolderB\$_" -whatif
   }

Compact version:

(gci 'c:\Folder\A' -file).Name | %{ri "c:\Folder\B\$_"}

Locate duplicate files

2 Answers2