Re: Getting (famous) error during running perl script


Do you know where your variables are?
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Re: Getting (famous) error during running perl script

by derby (Abbot)

on Jul 04, 2015 at 10:54 UTC ( [id://1133142]=note: print w/replies, xml )

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in reply to Getting (famous) error during running perl script

You concating an uninitialized variable on line 56 ... that's pretty plain. :-)

Maybe an example would help:

#!/usr/bin/env perl

use strict;
use warnings;

my $foo = "foo";
my $bar;  # $bar is uninitialized -- it has no value.

my $foobar = $foo . $bar;
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This could be harmless or devastating ... it really depends on what your code is doing and wether or not you expect/need the variable to have a value or not.

-derby