How can i get rid of the message "Duplicate sources.list entry
5407
How to fix "W: Duplicate sources.list entry"?
19565
Restore default apt repositories in sources.list from command line
14839
Do not delete good duplicates!
128805
Is there an easy way to replace duplicate files with hardlinks?
85801
Why do I get Source Kit Service terminated error?
79850
Interview - Detect/remove duplicate entries
130346
How do I delete all items that occur more than once?
81764
How can I delete all files from a directory when it reports "Argument list too long"
91152
Feed algorithm changed? Lots of duplicates
134563
How do I remove a broken software source?
13299
Index entries duplicated for captions
64106
Duplicate content concerns for directory listings?
138642
Should the "closed as duplicate" message be altered?
115633
Sanitize U+301 infection and others in references
109338
How do I restore the sources.list file?
151509
How to fix error W: Target Packages (main/binary-amd64/Packages) is configured multiple times in my sources.list file?
1687
How to revert software sources back to default?