Highlight consecutive duplicated words with Perl
perl -pe 's/\b(\w+)\s+\1\b/\e[31m$&\e[0m/gi' gettysburg.txt
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Perl dupes
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Highlight consecutive duplicated words with Perl
perl -pe 's/\b(\w+)\s+\1\b/\e[31m$&\e[0m/gi' gettysburg.txt
