How to fix seemingly autogenerated duplicates in sources.list in 14.04 LTS?
5407
How to fix "W: Duplicate sources.list entry"?
22554
How to delete duplicate features from shapefile/OSM XML using code/command line tools only? (NOT QGIS/ArcGis)
100704
Including sections of source code as a listing, while being robust to source code edits
2694
How do I remove a malformed line from my sources.list?
150119
Scheme removing nested duplicates
110822
Duplicated footnotes in long figure caption
94964
How to get list of duplicates when using DeleteDuplicates?
111647
How to find questions closed as duplicates via the Data Explorer
14839
Do not delete good duplicates!
145804
Is editing sources.list a good idea?
88193
Removing duplicates before train test split
22831
Changes to "close as duplicate" (part deux)
36244
Duplicate flag links in 10k tools are broken
24858
How do remove "Ignoring file in directory /etc/apt/sources.list.d/ as it has an invalid filename extension?
27245
How to find (and delete) duplicate files
38660
Deep copy of List
92406
Require duplicates to be imported in Shotwell