$ cat com.txt | sed 's/^\(\S*\.com\)\.\s.*/\1/' | sort | uniq A bit easier than ... | Hacker News

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		grifball on June 8, 2022 \| parent \| context \| favorite \| on: Find a good available .com domain `$ cat com.txt \| sed 's/^\(\S\.com\)\.\s./\1/' \| sort \| uniq` A bit easier than a ruby script

gouggoug on June 8, 2022 [–]

  cat com.txt | cut -d' ' -f1 | sort | uniq

Would work as well since there's no whitespace in the first column

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