You are very close and I don't see anything wrong with this approach.

The first split is in a list context and there is no need to assign "junk". The 2nd split should also be put into a list context and then just take the 2nd thing via a "list slice", [1] subscript. See below.. 

#!/usr/bin/perl -w
use strict;

my $line = 'client 127.0.0.1#47560: query: host.example.com IN AAAA';

my ( $part1)   = split (/#/,$line);
my ( $ipaddr ) = (split(/\s+/, $part1))[1];

print "  part1:  $part1\n  ipaddr: $ipaddr\n";
__END__
Prints:
  part1:  client 127.0.0.1
  ipaddr: 127.0.0.1

[download]
Occasionally you will see: 
(undef, my $ipaddr) =  split(/\s+/, $part1);

[download]
And although that will work, I wouldn't use it. Assigning something to undef as a lvalue "throws it in the bit bucket". I think it is "cleaner" to use the slice.

Update: Now of course, if you just want the IP address: 

my $line = 'client 127.0.0.1#47560: query: host.example.com IN AAAA';

(my $ipaddr) = (split/[\s#]/,$line)[1];

print "$ipaddr\n";
__END__
prints:
127.0.0.1

[download]

In reply to Re: split split by Marshall
in thread split split by Plankton

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