Here is the hash reference: 
$hwwns->{$hwpath} = $hwwn;

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Even if the reference was not used before, Perl will happily create a new one for you. The process is called "autovivification".

لսႽ† ᥲᥒ⚪⟊Ⴙᘓᖇ Ꮅᘓᖇ⎱ Ⴙᥲ𝇋ƙᘓᖇ

In reply to Re^3: Arrow operator usage in perl by choroba
in thread Arrow operator usage in perl by dvinay

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