What happens if... text files are frequently created and erased in a certain directory on a server, and your Perl script is trying to read the contents of that directory? Let's say you read the directory, but while you're reading, the next file gets erased. Then what? Will this cause Perl to think that there are no more files in the directory?

Here's an example: 


use strict;
use warnings;

my $PATH = '.';

explore($PATH);

sub explore
{
  my $PATH = shift;

  opendir(my $DIR, $PATH) or return;
  while (my $SUB = readdir $DIR)
  {
    next if $SUB eq '.' or $SUB eq '..';
    $SUB = "$PATH/$SUB";

    if (-d $SUB) {}
    if (-f $SUB) {}
  }
  close $DIR;
}

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In reply to filesystems & Perl by harangzsolt33

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