Linux Commands Reference - Complete Linux Command Guide
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uniq
Report or filter out repeated lines
Syntax
uniq [OPTION]... [INPUT [OUTPUT]]Common Options
-cCount occurrences-dShow only duplicates-uShow only unique-iIgnore caseCommon Examples
uniq file.txtRemove adjacent duplicates
uniq -c file.txtCount duplicates
sort file.txt | uniqRemove all duplicates
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