https://github.com/theohbrothers/get-duplicatecontact

A script to locate duplicate or non-duplicate contacts between two `.csv` contact lists.
https://github.com/theohbrothers/get-duplicatecontact

compare-object contact-lists contacts csv duplicates hashtable json keys nonduplicates object objects powershell pwsh script xml

Last synced: about 2 months ago
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A script to locate duplicate or non-duplicate contacts between two `.csv` contact lists.

• Host: GitHub
• URL: https://github.com/theohbrothers/get-duplicatecontact
• Owner: theohbrothers
• License: mit
• Created: 2021-10-22T12:48:13.000Z (over 4 years ago)
• Default Branch: master
• Last Pushed: 2021-10-22T12:57:07.000Z (over 4 years ago)
• Last Synced: 2025-01-25T14:29:07.533Z (over 1 year ago)
• Topics: compare-object, contact-lists, contacts, csv, duplicates, hashtable, json, keys, nonduplicates, object, objects, powershell, pwsh, script, xml
• Language: PowerShell
• Homepage:
• Size: 4.88 KB
• Stars: 0
• Watchers: 2
• Forks: 0
• Open Issues: 0
• Metadata Files:
  • Readme: README.md
  • License: LICENSE

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README

          
# Get-DuplicateContact

A script to locate duplicate or non-duplicate contacts between two `.csv` contact lists.

It is not just restricted to contacts as the project name implies, but really can compare between any two `.csv` lists. In fact you can use `.json` and `.xml`, just change the `ConvertFrom-Csv` to `ConvertFromJson` and `ConvertFrom-Xml` respectively.

## Notes

Why not just use `Compare-Object`?

- Searches using hashtable keys should be faster than `Compare-Object`. When working with many thousands or millions of records, the difference will be significant

- Hashtables build a meta object which can be used to store metadata, e.g. object keys.

- `Compare-Object` is generally unintuitive at least to the author. `.SideIndicator` grouping is difficult to manage and debug.