Or if $sub_dir is always going to be empty, then why are you using it?

I am assuming that you have some kind of loop going on where $sub_dir may or may-not be assigned. In that case I would try something like: 

my $path = join('', $dir, ($foo || ''), $file);

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This will fail if $foo == 0 so if that is a possibility then you could use.. 
my $path = join('', $dir, (defined $foo ? $foo : ''), $file);

[download]

In reply to Re: Handling uninitialized values by Sifmole
in thread Handling uninitialized values by THRAK

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