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  1. BEGIN{FS=OFS="."}{print $(NF-1),$NF}
Success #stdin #stdout 0.01s 5360KB
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yahoo.com
mail.yahoo.com
a.yahoo.com
stdout
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yahoo.com
yahoo.com
yahoo.com
https://ideone.com/IMxaNf
language:
AWK (gawk 4.2.1)
created:
1 year ago
visibility:
public

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