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项目作者： leojonathanoh

项目描述 ：
Removes duplicate files.
高级语言： PowerShell
项目地址: git://github.com/leojonathanoh/Remove-DuplicateItem.git
创建时间： 2016-11-02T07:36:34Z
项目社区：https://github.com/leojonathanoh/Remove-DuplicateItem
开源协议：Apache License 2.0
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Remove-Duplicates

github-actions
github-release
powershell-gallery-release

Removes duplicate files.

Deprecation

This project is deprecated.

It is simpler to use Get-DuplicateItem to get duplicates, and remove them by Remove-Item.

Install

  1. Install-Module Remove-DuplicateItem -Repository PSGallery -Scope CurrentUser -Verbose

Usage

  1. # List
  2. Remove-Duplicates -Path D:/foo -Scope 'withinFolder'
  3. # Delete
  4. Remove-Duplicates -Path D:/foo -Scope 'withinFolder' -Mode 1

FAQ

Q: What is a duplicate file?

A: Has separate file[s] with:

  • Same container folder
  • Same file contents (file hash)
  • Same file size.

Q: What is the original file?

A: An original file is a duplicate file but with the shortest name among all duplicates found. For instance:

  • Within-folder: C:\folder_with_duplicates\file.txt and C:\folder_with_duplicates\file_with_longer_name.txt are marked as duplicates. The former file.txt has a shorter name than the others file_with_longer_name.txt. Hence, file.txt is chosen to be the original file.

  • Across-folder: C:\folder1\file.txt and C:\folder2\file_with_longer_name.txt are marked as duplicates. The former file.txt has a shorter name than the others file_with_longer_name.txt. Hence, file.txt is chosen to be the original file.

Q: Help! I am getting an error 'File C:\Users\User\Remove-Duplicates\Remove-Duplicates.ps1 cannot be loaded because the execution of scripts is disabled on this system. Please see "get-help about_signing" for more details.'

  • You need to allow the execution of unverified scripts. Open Powershell as administrator, type Set-ExecutionPolicy Unrestricted -Force and press ENTER. Try running the script again. You can easily restore the security setting back by using Set-ExecutionPolicy Undefined -Force

Background

Most people create duplicate files within a specific folder either accidentally, or forgetfully, or obliviously

  • Accidentally: For instance, you create a file, and accidentally press Ctrl-C and Ctrl-V in the wrong place - a possible scenario, in explorer while highlighting on a file or a bunch of files, until you notice a bunch of copied files with appended ‘-Copy’ or ‘- Copy 1’ or ‘1 - Copy - Copy (1)’.
  • Forgetfully: You are working on a .doc, saving it once. Then a minute later you forgot you saved it, and save it again in another name. Now you have two identical files in a certain folder.
  • Obliviously: You restore files from Onedrive Web App (e.g. onedrive.com). Then later the same file from Recycle bin. You now have a duplicate in the same folder probably with suffix ‘Copy 1’ or some sort.