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Remove Duplicate Lines
Remove repeated lines while preserving the first occurrence.
Remove Duplicate Lines result
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How this tool works
The tool compares normalized lines, keeps the first occurrence of each line, and removes later duplicates according to the selected case rule.
Limits to know
Only nonblank line duplicates are compared. Whitespace and case treatment follow the selected controls; near-duplicates, spelling variants, and reordered words are not semantic matches.