I am not a Perl developer. However, my client has an application that is embedded within a set of Perl routines - so that forces me to understand the basics.

I'm fine with most of the code except for a polling condition established by a WHILE loop based on the following DEFINED condition: 

while (defined ($Variable = <$Path{Directory}\\*$FileExtension{TestFil
+e}>))

[download]

My question: When is the above DEFINED condition true?

(Ancillary question: Is my following narrative understanding of the statement correct? - Perform while a file - any file - matching the pattern Path\*.Extension is recognized?)

I have performed numerous searches on the many Perl sites, but have had not luck. Any thoughts on where I can find an answer?

Thanks for your assistance/direction!

LazrD (first time in the monastery)

Retitled by Steve_p from 'Need direction'.

In reply to When is defined true? by LazrD

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