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Answer: Converting an IP from hexadecimal to dotted-quad

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Q&A > data formatting > Converting an IP from hexadecimal to dotted-quad contributed by Abigail-II

Here's one way, using Regexp::Common, although it's unlikely to be the most efficient:
use Regexp::Common; $ip =~ s( ^$RE{net}{IPv4}{hex}{-sep=>''}{-keep}$ ){ join '.', map { hex } $2, $3, $4, $5 }xe;

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