Perl allows postfix flow control, which would tighten this up a bit. Personally, I also find this version much more readable, but there are those who would disagree: 
...
            $people = 1 if ($filename eq 'people.pdf');
            $animal = 1 if ($filename eq 'animal.pdf');
            $msi    = 1 if ($filename eq 'setup.msi');
        }
    }
    print "People not found\n"   unless defined $people;
    print "animal not found\n"   unless defined $animal;
    print "MSI file not found\n" unless defined $msi;
...

[download]
rovf's suggestion with using a hash to store the mapping of filenames to file descriptions is definitely the way to go for longer-term maintenance, since it allows you to expand the range of things you're looking for by simply adding a new hash entry, turning this into: 
my %filenames = (
                 people.pdf => 'Person',
                 animal.pdf => 'animal',
                 setup.msi  => 'MSI file',
                );
...
            for (keys %filenames) {
                delete $filenames{$_} if $filename eq $_;
            }
        }
    }
    for (values %filenames) {
        print "$_ not found\n";
    }
...

[download]

In reply to Re: Perlish while loop by dsheroh
in thread Perlish while loop by Sun751

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