One way would be to put all the strings you want to match (or negative match) in a hash so that you can check for their existance: 

my @invalid_list = qw< John Simon Mathias Aerith Bob >;
my @test = qw< Alice Bob John Doe >;

my %invalid = map { $_ => 1 } @invalid_list;
for my $name (@test)
{
  print "$name\n" unless exists $invalid{$name};
}

[download]

Or, as proposed by tobyink, you can use List::Util: 

use List::Util qw( none all any );
for my $name (@test)
{
  print "None > $name\n" if none { $name eq $_ } @invalid_list;
  print "Any  > $name\n" unless any { $name eq $_ } @invalid_list;
  print "All  > $name\n" if all { $name ne $_ } @invalid_list;
}

[download]
(There's also notall, but it would have required a triple negation in this case).

In reply to Re: Comparing multiple strings by Eily
in thread Comparing multiple strings by bigup401

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