why not simply: if (not $entry)

Because that would also be false for "0".

if ($entry eq "")
(as you mentioned) works, and so does
if (not length $entry)
(my usual) and
unless (length $entry)

In reply to Re^2: Pls help optomize - ksh version 60% faster! by ikegami
in thread Pls help optomize - ksh version 60% faster! by coreolyn

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