HTML is plain text... that awk can write for you (no need for an editor):$ awk 'NR > 2 { print $2, $1 }' selection.txt | uniq -Df 1 | awk 'BEGIN { print "\nhostnameIPv4 address\n" } { print "" $2 "" $1 "" } END { print "\n" }'
hostnameIPv4 address alnikino.ru212.109.192.55 alnikino.ru212.109.197.49 alolika.su82.202.160.112 alolika.su92.63.110.215
