for (@ARGV){$l=length()+1if(length($_)>$l);}
for (sort @ARGV) {
    printf
    qq#%-${l}s %s\n#,"$_:",
    qq-@{[/^\D/o?join '.',unpack('C4',gethostbyname $_)
    :scalar gethostbyaddr(pack('C4',split '\.'),2)]}-;
}

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In reply to Simple nslookup with perl by perldork

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