It's a warning. It may not be too important but it means that there's a variable being used in that regex that has not been initialized. There are various reasons why this might happen.
eg...
my $variable;
if ($variable =~ /test/) {
print "something";
}
If you were to use:
...the warning would go away.
eg...
Code:
#!/usr/bin/perl -w my $variable;
if ($variable =~ /test/) {
print "something";
}
If you were to use:
Code:
my $variable = "testing";...the warning would go away.
