$row->[15] = ''; if ($row->[5] =~ /#[^ ]+/) { ($row->[15]) = $row->[5] =~ /(#[^ ]+)/; }

with (untested):

($row->[15]) = $row->[5] =~ /(#[^ ]+/ ? $row->[5] : '';

more readable, logically? same line as above, but split across a few lines:

($row->[15]) = $row->[5] =~ /(#[^ ]+/ ? $row->[5] : '';

ternary (aka. conditional) operator.

In reply to Re^4: Initialize or Match undef without warning by stevieb
in thread Initialize or Match undef without warning by JobC

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